Home / 87,382,731,308.80-120,588,378,822.40-47,285,140,967.68

Finding the Fourth Proportional to 87,382,731,308.80, 120,588,378,822.40 and 47,285,140,967.68

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Solution

The fourth proportional to 87,382,731,308.80, 120,588,378,822.40 and 47,285,140,967.68 is: 65,253,607,964.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,382,731,308.80 : 120,588,378,822.40 = 47,285,140,967.68 : x
  2. Step 2: Convert to fraction form
    87,382,731,308.80/120,588,378,822.40 = 47,285,140,967.68/x
  3. Step 3: Cross multiply
    87,382,731,308.80x = 120,588,378,822.40 × 47,285,140,967.68
  4. Step 4: Simplify right side
    87,382,731,308.80x = 5,702,038,491,681,180,876,800
  5. Step 5: Solve for x
    x = 5,702,038,491,681,180,876,800/87,382,731,308.80
  6. Step 6: Final answer
    x = 65,253,607,964.38

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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.