Home / 81,236,278.40-121,849,932.38-59,399,035.56

Finding the Fourth Proportional to 81,236,278.40, 121,849,932.38 and 59,399,035.56

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Solution

The fourth proportional to 81,236,278.40, 121,849,932.38 and 59,399,035.56 is: 89,095,273.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,236,278.40 : 121,849,932.38 = 59,399,035.56 : x
  2. Step 2: Convert to fraction form
    81,236,278.40/121,849,932.38 = 59,399,035.56/x
  3. Step 3: Cross multiply
    81,236,278.40x = 121,849,932.38 × 59,399,035.56
  4. Step 4: Simplify right side
    81,236,278.40x = 7,237,768,466,126,221
  5. Step 5: Solve for x
    x = 7,237,768,466,126,221/81,236,278.40
  6. Step 6: Final answer
    x = 89,095,273.80

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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.