Home / 131,283,561.60-197,102,635.20-76,752,028.80

Finding the Fourth Proportional to 131,283,561.60, 197,102,635.20 and 76,752,028.80

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Solution

The fourth proportional to 131,283,561.60, 197,102,635.20 and 76,752,028.80 is: 115,231,693.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,283,561.60 : 197,102,635.20 = 76,752,028.80 : x
  2. Step 2: Convert to fraction form
    131,283,561.60/197,102,635.20 = 76,752,028.80/x
  3. Step 3: Cross multiply
    131,283,561.60x = 197,102,635.20 × 76,752,028.80
  4. Step 4: Simplify right side
    131,283,561.60x = 15,128,027,133,426,292
  5. Step 5: Solve for x
    x = 15,128,027,133,426,292/131,283,561.60
  6. Step 6: Final answer
    x = 115,231,693.51

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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.