Home / 138,429,333.30-207,643,999.95-115,922,478.90

Finding the Fourth Proportional to 138,429,333.30, 207,643,999.95 and 115,922,478.90

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Solution

The fourth proportional to 138,429,333.30, 207,643,999.95 and 115,922,478.90 is: 173,883,718.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,429,333.30 : 207,643,999.95 = 115,922,478.90 : x
  2. Step 2: Convert to fraction form
    138,429,333.30/207,643,999.95 = 115,922,478.90/x
  3. Step 3: Cross multiply
    138,429,333.30x = 207,643,999.95 × 115,922,478.90
  4. Step 4: Simplify right side
    138,429,333.30x = 24,070,607,202,915,476
  5. Step 5: Solve for x
    x = 24,070,607,202,915,476/138,429,333.30
  6. Step 6: Final answer
    x = 173,883,718.35

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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.