Home / 529,982,091.72-731,380,698.88-291,849,420.53

Finding the Fourth Proportional to 529,982,091.72, 731,380,698.88 and 291,849,420.53

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Solution

The fourth proportional to 529,982,091.72, 731,380,698.88 and 291,849,420.53 is: 402,755,180.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,982,091.72 : 731,380,698.88 = 291,849,420.53 : x
  2. Step 2: Convert to fraction form
    529,982,091.72/731,380,698.88 = 291,849,420.53/x
  3. Step 3: Cross multiply
    529,982,091.72x = 731,380,698.88 × 291,849,420.53
  4. Step 4: Simplify right side
    529,982,091.72x = 213,453,033,156,053,280
  5. Step 5: Solve for x
    x = 213,453,033,156,053,280/529,982,091.72
  6. Step 6: Final answer
    x = 402,755,180.77

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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.