Home / 80,935,096.80-121,402,645.20-72,432,040.80

Finding the Fourth Proportional to 80,935,096.80, 121,402,645.20 and 72,432,040.80

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Solution

The fourth proportional to 80,935,096.80, 121,402,645.20 and 72,432,040.80 is: 108,648,061.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,935,096.80 : 121,402,645.20 = 72,432,040.80 : x
  2. Step 2: Convert to fraction form
    80,935,096.80/121,402,645.20 = 72,432,040.80/x
  3. Step 3: Cross multiply
    80,935,096.80x = 121,402,645.20 × 72,432,040.80
  4. Step 4: Simplify right side
    80,935,096.80x = 8,793,441,350,354,324
  5. Step 5: Solve for x
    x = 8,793,441,350,354,324/80,935,096.80
  6. Step 6: Final answer
    x = 108,648,061.20

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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.