Home / 289,700,777.16-399,781,529.28-159,320,585.16

Finding the Fourth Proportional to 289,700,777.16, 399,781,529.28 and 159,320,585.16

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Solution

The fourth proportional to 289,700,777.16, 399,781,529.28 and 159,320,585.16 is: 219,859,359.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,700,777.16 : 399,781,529.28 = 159,320,585.16 : x
  2. Step 2: Convert to fraction form
    289,700,777.16/399,781,529.28 = 159,320,585.16/x
  3. Step 3: Cross multiply
    289,700,777.16x = 399,781,529.28 × 159,320,585.16
  4. Step 4: Simplify right side
    289,700,777.16x = 63,693,427,181,049,264
  5. Step 5: Solve for x
    x = 63,693,427,181,049,264/289,700,777.16
  6. Step 6: Final answer
    x = 219,859,359.04

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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.