Home / 529,737,564-731,032,036.87-291,577,656.61

Finding the Fourth Proportional to 529,737,564, 731,032,036.87 and 291,577,656.61

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Solution

The fourth proportional to 529,737,564, 731,032,036.87 and 291,577,656.61 is: 402,373,972.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,737,564 : 731,032,036.87 = 291,577,656.61 : x
  2. Step 2: Convert to fraction form
    529,737,564/731,032,036.87 = 291,577,656.61/x
  3. Step 3: Cross multiply
    529,737,564x = 731,032,036.87 × 291,577,656.61
  4. Step 4: Simplify right side
    529,737,564x = 213,152,608,217,389,728
  5. Step 5: Solve for x
    x = 213,152,608,217,389,728/529,737,564
  6. Step 6: Final answer
    x = 402,373,972.89

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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.