Home / 530,979,997.32-732,749,778.90-308,006,774.28

Finding the Fourth Proportional to 530,979,997.32, 732,749,778.90 and 308,006,774.28

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Solution

The fourth proportional to 530,979,997.32, 732,749,778.90 and 308,006,774.28 is: 425,047,830.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,979,997.32 : 732,749,778.90 = 308,006,774.28 : x
  2. Step 2: Convert to fraction form
    530,979,997.32/732,749,778.90 = 308,006,774.28/x
  3. Step 3: Cross multiply
    530,979,997.32x = 732,749,778.90 × 308,006,774.28
  4. Step 4: Simplify right side
    530,979,997.32x = 225,691,895,753,372,192
  5. Step 5: Solve for x
    x = 225,691,895,753,372,192/530,979,997.32
  6. Step 6: Final answer
    x = 425,047,830.22

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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.