Home / 87,686,330.80-131,417,521.80-67,390,970.80

Finding the Fourth Proportional to 87,686,330.80, 131,417,521.80 and 67,390,970.80

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Solution

The fourth proportional to 87,686,330.80, 131,417,521.80 and 67,390,970.80 is: 101,000,398.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,686,330.80 : 131,417,521.80 = 67,390,970.80 : x
  2. Step 2: Convert to fraction form
    87,686,330.80/131,417,521.80 = 67,390,970.80/x
  3. Step 3: Cross multiply
    87,686,330.80x = 131,417,521.80 × 67,390,970.80
  4. Step 4: Simplify right side
    87,686,330.80x = 8,856,354,374,232,163
  5. Step 5: Solve for x
    x = 8,856,354,374,232,163/87,686,330.80
  6. Step 6: Final answer
    x = 101,000,398.73

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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.