Home / 811,103,687.60-1,216,655,531.40-538,474,454.60

Finding the Fourth Proportional to 811,103,687.60, 1,216,655,531.40 and 538,474,454.60

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Solution

The fourth proportional to 811,103,687.60, 1,216,655,531.40 and 538,474,454.60 is: 807,711,681.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,103,687.60 : 1,216,655,531.40 = 538,474,454.60 : x
  2. Step 2: Convert to fraction form
    811,103,687.60/1,216,655,531.40 = 538,474,454.60/x
  3. Step 3: Cross multiply
    811,103,687.60x = 1,216,655,531.40 × 538,474,454.60
  4. Step 4: Simplify right side
    811,103,687.60x = 655,137,923,706,688,256
  5. Step 5: Solve for x
    x = 655,137,923,706,688,256/811,103,687.60
  6. Step 6: Final answer
    x = 807,711,681.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.