Home / 400,649,961.15-601,015,532.45-138,300,318.27

Finding the Fourth Proportional to 400,649,961.15, 601,015,532.45 and 138,300,318.27

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Solution

The fourth proportional to 400,649,961.15, 601,015,532.45 and 138,300,318.27 is: 207,464,488.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,649,961.15 : 601,015,532.45 = 138,300,318.27 : x
  2. Step 2: Convert to fraction form
    400,649,961.15/601,015,532.45 = 138,300,318.27/x
  3. Step 3: Cross multiply
    400,649,961.15x = 601,015,532.45 × 138,300,318.27
  4. Step 4: Simplify right side
    400,649,961.15x = 83,120,639,422,357,024
  5. Step 5: Solve for x
    x = 83,120,639,422,357,024/400,649,961.15
  6. Step 6: Final answer
    x = 207,464,488.91

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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.