Home / 840,501,403.92-1,261,517,168.71-447,358,291.80

Finding the Fourth Proportional to 840,501,403.92, 1,261,517,168.71 and 447,358,291.80

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Solution

The fourth proportional to 840,501,403.92, 1,261,517,168.71 and 447,358,291.80 is: 671,444,643.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,501,403.92 : 1,261,517,168.71 = 447,358,291.80 : x
  2. Step 2: Convert to fraction form
    840,501,403.92/1,261,517,168.71 = 447,358,291.80/x
  3. Step 3: Cross multiply
    840,501,403.92x = 1,261,517,168.71 × 447,358,291.80
  4. Step 4: Simplify right side
    840,501,403.92x = 564,350,165,668,589,056
  5. Step 5: Solve for x
    x = 564,350,165,668,589,056/840,501,403.92
  6. Step 6: Final answer
    x = 671,444,643.68

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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.