Home / 1,440,485,513.81-1,986,773,235.15-1,239,883,808.15

Finding the Fourth Proportional to 1,440,485,513.81, 1,986,773,235.15 and 1,239,883,808.15

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Solution

The fourth proportional to 1,440,485,513.81, 1,986,773,235.15 and 1,239,883,808.15 is: 1,710,095,617.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,485,513.81 : 1,986,773,235.15 = 1,239,883,808.15 : x
  2. Step 2: Convert to fraction form
    1,440,485,513.81/1,986,773,235.15 = 1,239,883,808.15/x
  3. Step 3: Cross multiply
    1,440,485,513.81x = 1,986,773,235.15 × 1,239,883,808.15
  4. Step 4: Simplify right side
    1,440,485,513.81x = 2,463,367,964,719,584,768
  5. Step 5: Solve for x
    x = 2,463,367,964,719,584,768/1,440,485,513.81
  6. Step 6: Final answer
    x = 1,710,095,617.83

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Double scale
Find fourth proportional to 1,440,485,514.81, 1,986,773,236.53 and 1,239,883,809.15
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.