Home / 77,140,073.60-115,028,569.12-76,447,698.56

Finding the Fourth Proportional to 77,140,073.60, 115,028,569.12 and 76,447,698.56

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Solution

The fourth proportional to 77,140,073.60, 115,028,569.12 and 76,447,698.56 is: 113,996,123.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,140,073.60 : 115,028,569.12 = 76,447,698.56 : x
  2. Step 2: Convert to fraction form
    77,140,073.60/115,028,569.12 = 76,447,698.56/x
  3. Step 3: Cross multiply
    77,140,073.60x = 115,028,569.12 × 76,447,698.56
  4. Step 4: Simplify right side
    77,140,073.60x = 8,793,669,377,873,885
  5. Step 5: Solve for x
    x = 8,793,669,377,873,885/77,140,073.60
  6. Step 6: Final answer
    x = 113,996,123.77

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.