Home / 825,856,277.60-1,238,784,416.40-476,699,540.60

Finding the Fourth Proportional to 825,856,277.60, 1,238,784,416.40 and 476,699,540.60

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Solution

The fourth proportional to 825,856,277.60, 1,238,784,416.40 and 476,699,540.60 is: 715,049,310.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,856,277.60 : 1,238,784,416.40 = 476,699,540.60 : x
  2. Step 2: Convert to fraction form
    825,856,277.60/1,238,784,416.40 = 476,699,540.60/x
  3. Step 3: Cross multiply
    825,856,277.60x = 1,238,784,416.40 × 476,699,540.60
  4. Step 4: Simplify right side
    825,856,277.60x = 590,527,962,200,319,232
  5. Step 5: Solve for x
    x = 590,527,962,200,319,232/825,856,277.60
  6. Step 6: Final answer
    x = 715,049,310.90

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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.