Home / 288,275,302.95-397,817,937.15-156,113,275.10

Finding the Fourth Proportional to 288,275,302.95, 397,817,937.15 and 156,113,275.10

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Solution

The fourth proportional to 288,275,302.95, 397,817,937.15 and 156,113,275.10 is: 215,435,246.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,275,302.95 : 397,817,937.15 = 156,113,275.10 : x
  2. Step 2: Convert to fraction form
    288,275,302.95/397,817,937.15 = 156,113,275.10/x
  3. Step 3: Cross multiply
    288,275,302.95x = 397,817,937.15 × 156,113,275.10
  4. Step 4: Simplify right side
    288,275,302.95x = 62,104,661,060,023,368
  5. Step 5: Solve for x
    x = 62,104,661,060,023,368/288,275,302.95
  6. Step 6: Final answer
    x = 215,435,246.88

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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.