Home / 256,971,601.32-385,472,353.77-72,723,663.96

Finding the Fourth Proportional to 256,971,601.32, 385,472,353.77 and 72,723,663.96

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Solution

The fourth proportional to 256,971,601.32, 385,472,353.77 and 72,723,663.96 is: 109,089,727.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,971,601.32 : 385,472,353.77 = 72,723,663.96 : x
  2. Step 2: Convert to fraction form
    256,971,601.32/385,472,353.77 = 72,723,663.96/x
  3. Step 3: Cross multiply
    256,971,601.32x = 385,472,353.77 × 72,723,663.96
  4. Step 4: Simplify right side
    256,971,601.32x = 28,032,961,921,439,716
  5. Step 5: Solve for x
    x = 28,032,961,921,439,716/256,971,601.32
  6. Step 6: Final answer
    x = 109,089,727.34

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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.