Home / 80,406,501.52-120,649,607.52-31,883,315.44

Finding the Fourth Proportional to 80,406,501.52, 120,649,607.52 and 31,883,315.44

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Solution

The fourth proportional to 80,406,501.52, 120,649,607.52 and 31,883,315.44 is: 47,840,776.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,406,501.52 : 120,649,607.52 = 31,883,315.44 : x
  2. Step 2: Convert to fraction form
    80,406,501.52/120,649,607.52 = 31,883,315.44/x
  3. Step 3: Cross multiply
    80,406,501.52x = 120,649,607.52 × 31,883,315.44
  4. Step 4: Simplify right side
    80,406,501.52x = 3,846,709,494,272,356
  5. Step 5: Solve for x
    x = 3,846,709,494,272,356/80,406,501.52
  6. Step 6: Final answer
    x = 47,840,776.82

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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.