Home / 420,677,593.47-631,029,245.46-144,324,931.18

Finding the Fourth Proportional to 420,677,593.47, 631,029,245.46 and 144,324,931.18

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Solution

The fourth proportional to 420,677,593.47, 631,029,245.46 and 144,324,931.18 is: 216,491,807.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,677,593.47 : 631,029,245.46 = 144,324,931.18 : x
  2. Step 2: Convert to fraction form
    420,677,593.47/631,029,245.46 = 144,324,931.18/x
  3. Step 3: Cross multiply
    420,677,593.47x = 631,029,245.46 × 144,324,931.18
  4. Step 4: Simplify right side
    420,677,593.47x = 91,073,252,423,581,840
  5. Step 5: Solve for x
    x = 91,073,252,423,581,840/420,677,593.47
  6. Step 6: Final answer
    x = 216,491,807.12

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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.