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Finding the Fourth Proportional to 487,365,997.86, 730,977,212.03 and 159,876,117.72

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Solution

The fourth proportional to 487,365,997.86, 730,977,212.03 and 159,876,117.72 is: 239,790,628.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,365,997.86 : 730,977,212.03 = 159,876,117.72 : x
  2. Step 2: Convert to fraction form
    487,365,997.86/730,977,212.03 = 159,876,117.72/x
  3. Step 3: Cross multiply
    487,365,997.86x = 730,977,212.03 × 159,876,117.72
  4. Step 4: Simplify right side
    487,365,997.86x = 116,865,798,800,346,288
  5. Step 5: Solve for x
    x = 116,865,798,800,346,288/487,365,997.86
  6. Step 6: Final answer
    x = 239,790,628.22

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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.