Home / 131,399,118-181,331,958.44-72,665,762.04

Finding the Fourth Proportional to 131,399,118, 181,331,958.44 and 72,665,762.04

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Solution

The fourth proportional to 131,399,118, 181,331,958.44 and 72,665,762.04 is: 100,279,401.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,399,118 : 181,331,958.44 = 72,665,762.04 : x
  2. Step 2: Convert to fraction form
    131,399,118/181,331,958.44 = 72,665,762.04/x
  3. Step 3: Cross multiply
    131,399,118x = 181,331,958.44 × 72,665,762.04
  4. Step 4: Simplify right side
    131,399,118x = 13,176,624,941,884,882
  5. Step 5: Solve for x
    x = 13,176,624,941,884,882/131,399,118
  6. Step 6: Final answer
    x = 100,279,401.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.