Home / 825,856,257.60-1,238,784,386.40-476,699,520.60

Finding the Fourth Proportional to 825,856,257.60, 1,238,784,386.40 and 476,699,520.60

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Solution

The fourth proportional to 825,856,257.60, 1,238,784,386.40 and 476,699,520.60 is: 715,049,280.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,856,257.60 : 1,238,784,386.40 = 476,699,520.60 : x
  2. Step 2: Convert to fraction form
    825,856,257.60/1,238,784,386.40 = 476,699,520.60/x
  3. Step 3: Cross multiply
    825,856,257.60x = 1,238,784,386.40 × 476,699,520.60
  4. Step 4: Simplify right side
    825,856,257.60x = 590,527,923,123,645,184
  5. Step 5: Solve for x
    x = 590,527,923,123,645,184/825,856,257.60
  6. Step 6: Final answer
    x = 715,049,280.90

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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.