Home / 1,011,488,718.40-1,517,233,077.60-284,477,430.40

Finding the Fourth Proportional to 1,011,488,718.40, 1,517,233,077.60 and 284,477,430.40

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Solution

The fourth proportional to 1,011,488,718.40, 1,517,233,077.60 and 284,477,430.40 is: 426,716,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,488,718.40 : 1,517,233,077.60 = 284,477,430.40 : x
  2. Step 2: Convert to fraction form
    1,011,488,718.40/1,517,233,077.60 = 284,477,430.40/x
  3. Step 3: Cross multiply
    1,011,488,718.40x = 1,517,233,077.60 × 284,477,430.40
  4. Step 4: Simplify right side
    1,011,488,718.40x = 431,618,567,233,531,712
  5. Step 5: Solve for x
    x = 431,618,567,233,531,712/1,011,488,718.40
  6. Step 6: Final answer
    x = 426,716,145.60

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Half scale
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Double scale
Find fourth proportional to 1,011,488,719.40, 1,517,233,079.10 and 284,477,431.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.