Home / 766,369,689.60-1,149,554,534.40-443,883,417.60

Finding the Fourth Proportional to 766,369,689.60, 1,149,554,534.40 and 443,883,417.60

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Solution

The fourth proportional to 766,369,689.60, 1,149,554,534.40 and 443,883,417.60 is: 665,825,126.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,369,689.60 : 1,149,554,534.40 = 443,883,417.60 : x
  2. Step 2: Convert to fraction form
    766,369,689.60/1,149,554,534.40 = 443,883,417.60/x
  3. Step 3: Cross multiply
    766,369,689.60x = 1,149,554,534.40 × 443,883,417.60
  4. Step 4: Simplify right side
    766,369,689.60x = 510,268,195,447,048,832
  5. Step 5: Solve for x
    x = 510,268,195,447,048,832/766,369,689.60
  6. Step 6: Final answer
    x = 665,825,126.40

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Double scale
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Similar ratio
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1.5x scale

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.