Home / 838,696,625.55-1,157,404,839.12-462,344,945.40

Finding the Fourth Proportional to 838,696,625.55, 1,157,404,839.12 and 462,344,945.40

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Solution

The fourth proportional to 838,696,625.55, 1,157,404,839.12 and 462,344,945.40 is: 638,037,951.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,696,625.55 : 1,157,404,839.12 = 462,344,945.40 : x
  2. Step 2: Convert to fraction form
    838,696,625.55/1,157,404,839.12 = 462,344,945.40/x
  3. Step 3: Cross multiply
    838,696,625.55x = 1,157,404,839.12 × 462,344,945.40
  4. Step 4: Simplify right side
    838,696,625.55x = 535,120,277,148,632,128
  5. Step 5: Solve for x
    x = 535,120,277,148,632,128/838,696,625.55
  6. Step 6: Final answer
    x = 638,037,951.80

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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.