Home / 87,078,543.88-120,141,333.01-49,395,501.89

Finding the Fourth Proportional to 87,078,543.88, 120,141,333.01 and 49,395,501.89

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Solution

The fourth proportional to 87,078,543.88, 120,141,333.01 and 49,395,501.89 is: 68,150,444.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,078,543.88 : 120,141,333.01 = 49,395,501.89 : x
  2. Step 2: Convert to fraction form
    87,078,543.88/120,141,333.01 = 49,395,501.89/x
  3. Step 3: Cross multiply
    87,078,543.88x = 120,141,333.01 × 49,395,501.89
  4. Step 4: Simplify right side
    87,078,543.88x = 5,934,441,441,515,597
  5. Step 5: Solve for x
    x = 5,934,441,441,515,597/87,078,543.88
  6. Step 6: Final answer
    x = 68,150,444.16

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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.