Home / 879,721,505.60-1,319,246,335.20-266,101,793.60

Finding the Fourth Proportional to 879,721,505.60, 1,319,246,335.20 and 266,101,793.60

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Solution

The fourth proportional to 879,721,505.60, 1,319,246,335.20 and 266,101,793.60 is: 399,051,078.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,721,505.60 : 1,319,246,335.20 = 266,101,793.60 : x
  2. Step 2: Convert to fraction form
    879,721,505.60/1,319,246,335.20 = 266,101,793.60/x
  3. Step 3: Cross multiply
    879,721,505.60x = 1,319,246,335.20 × 266,101,793.60
  4. Step 4: Simplify right side
    879,721,505.60x = 351,053,815,996,946,816
  5. Step 5: Solve for x
    x = 351,053,815,996,946,816/879,721,505.60
  6. Step 6: Final answer
    x = 399,051,078.96

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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.