Home / 1,225,105,512.40-1,837,658,268.60-407,111,525.20

Finding the Fourth Proportional to 1,225,105,512.40, 1,837,658,268.60 and 407,111,525.20

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Solution

The fourth proportional to 1,225,105,512.40, 1,837,658,268.60 and 407,111,525.20 is: 610,667,287.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,105,512.40 : 1,837,658,268.60 = 407,111,525.20 : x
  2. Step 2: Convert to fraction form
    1,225,105,512.40/1,837,658,268.60 = 407,111,525.20/x
  3. Step 3: Cross multiply
    1,225,105,512.40x = 1,837,658,268.60 × 407,111,525.20
  4. Step 4: Simplify right side
    1,225,105,512.40x = 748,131,860,526,137,216
  5. Step 5: Solve for x
    x = 748,131,860,526,137,216/1,225,105,512.40
  6. Step 6: Final answer
    x = 610,667,287.80

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Double scale
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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.