Home / 840,501,420.31-1,261,517,193.26-447,358,308.19

Finding the Fourth Proportional to 840,501,420.31, 1,261,517,193.26 and 447,358,308.19

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Solution

The fourth proportional to 840,501,420.31, 1,261,517,193.26 and 447,358,308.19 is: 671,444,668.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,501,420.31 : 1,261,517,193.26 = 447,358,308.19 : x
  2. Step 2: Convert to fraction form
    840,501,420.31/1,261,517,193.26 = 447,358,308.19/x
  3. Step 3: Cross multiply
    840,501,420.31x = 1,261,517,193.26 × 447,358,308.19
  4. Step 4: Simplify right side
    840,501,420.31x = 564,350,197,324,000,320
  5. Step 5: Solve for x
    x = 564,350,197,324,000,320/840,501,420.31
  6. Step 6: Final answer
    x = 671,444,668.25

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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.