Home / 257,156,127.21-354,904,895.07-144,156,139.20

Finding the Fourth Proportional to 257,156,127.21, 354,904,895.07 and 144,156,139.20

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Solution

The fourth proportional to 257,156,127.21, 354,904,895.07 and 144,156,139.20 is: 198,951,975.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,156,127.21 : 354,904,895.07 = 144,156,139.20 : x
  2. Step 2: Convert to fraction form
    257,156,127.21/354,904,895.07 = 144,156,139.20/x
  3. Step 3: Cross multiply
    257,156,127.21x = 354,904,895.07 × 144,156,139.20
  4. Step 4: Simplify right side
    257,156,127.21x = 51,161,719,456,472,312
  5. Step 5: Solve for x
    x = 51,161,719,456,472,312/257,156,127.21
  6. Step 6: Final answer
    x = 198,951,975.25

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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.