Home / 120,236,915.97-165,927,263.13-65,232,772.47

Finding the Fourth Proportional to 120,236,915.97, 165,927,263.13 and 65,232,772.47

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Solution

The fourth proportional to 120,236,915.97, 165,927,263.13 and 65,232,772.47 is: 90,021,399.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,236,915.97 : 165,927,263.13 = 65,232,772.47 : x
  2. Step 2: Convert to fraction form
    120,236,915.97/165,927,263.13 = 65,232,772.47/x
  3. Step 3: Cross multiply
    120,236,915.97x = 165,927,263.13 × 65,232,772.47
  4. Step 4: Simplify right side
    120,236,915.97x = 10,823,895,402,329,110
  5. Step 5: Solve for x
    x = 10,823,895,402,329,110/120,236,915.97
  6. Step 6: Final answer
    x = 90,021,399.13

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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.