Home / 409,227,412.64-564,727,156-223,584,432.80

Finding the Fourth Proportional to 409,227,412.64, 564,727,156 and 223,584,432.80

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Solution

The fourth proportional to 409,227,412.64, 564,727,156 and 223,584,432.80 is: 308,542,871.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,227,412.64 : 564,727,156 = 223,584,432.80 : x
  2. Step 2: Convert to fraction form
    409,227,412.64/564,727,156 = 223,584,432.80/x
  3. Step 3: Cross multiply
    409,227,412.64x = 564,727,156 × 223,584,432.80
  4. Step 4: Simplify right side
    409,227,412.64x = 126,264,200,861,017,120
  5. Step 5: Solve for x
    x = 126,264,200,861,017,120/409,227,412.64
  6. Step 6: Final answer
    x = 308,542,871.18

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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.