Home / 87,552,187.60-131,139,324.60-72,435,643.60

Finding the Fourth Proportional to 87,552,187.60, 131,139,324.60 and 72,435,643.60

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Solution

The fourth proportional to 87,552,187.60, 131,139,324.60 and 72,435,643.60 is: 108,497,133.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,552,187.60 : 131,139,324.60 = 72,435,643.60 : x
  2. Step 2: Convert to fraction form
    87,552,187.60/131,139,324.60 = 72,435,643.60/x
  3. Step 3: Cross multiply
    87,552,187.60x = 131,139,324.60 × 72,435,643.60
  4. Step 4: Simplify right side
    87,552,187.60x = 9,499,161,378,670,312
  5. Step 5: Solve for x
    x = 9,499,161,378,670,312/87,552,187.60
  6. Step 6: Final answer
    x = 108,497,133.41

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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.