Home / 660,327,002.40-990,490,503.60-650,123,335.20

Finding the Fourth Proportional to 660,327,002.40, 990,490,503.60 and 650,123,335.20

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Solution

The fourth proportional to 660,327,002.40, 990,490,503.60 and 650,123,335.20 is: 975,185,002.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,327,002.40 : 990,490,503.60 = 650,123,335.20 : x
  2. Step 2: Convert to fraction form
    660,327,002.40/990,490,503.60 = 650,123,335.20/x
  3. Step 3: Cross multiply
    660,327,002.40x = 990,490,503.60 × 650,123,335.20
  4. Step 4: Simplify right side
    660,327,002.40x = 643,940,989,684,359,680
  5. Step 5: Solve for x
    x = 643,940,989,684,359,680/660,327,002.40
  6. Step 6: Final answer
    x = 975,185,002.80

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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.