Home / 81,595,374.30-122,393,061.45-76,808,468.70

Finding the Fourth Proportional to 81,595,374.30, 122,393,061.45 and 76,808,468.70

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Solution

The fourth proportional to 81,595,374.30, 122,393,061.45 and 76,808,468.70 is: 115,212,703.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,595,374.30 : 122,393,061.45 = 76,808,468.70 : x
  2. Step 2: Convert to fraction form
    81,595,374.30/122,393,061.45 = 76,808,468.70/x
  3. Step 3: Cross multiply
    81,595,374.30x = 122,393,061.45 × 76,808,468.70
  4. Step 4: Simplify right side
    81,595,374.30x = 9,400,823,629,479,502
  5. Step 5: Solve for x
    x = 9,400,823,629,479,502/81,595,374.30
  6. Step 6: Final answer
    x = 115,212,703.05

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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.