Home / 392,472,854.32-541,588,135.32-216,250,988.13

Finding the Fourth Proportional to 392,472,854.32, 541,588,135.32 and 216,250,988.13

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Solution

The fourth proportional to 392,472,854.32, 541,588,135.32 and 216,250,988.13 is: 298,412,917.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,472,854.32 : 541,588,135.32 = 216,250,988.13 : x
  2. Step 2: Convert to fraction form
    392,472,854.32/541,588,135.32 = 216,250,988.13/x
  3. Step 3: Cross multiply
    392,472,854.32x = 541,588,135.32 × 216,250,988.13
  4. Step 4: Simplify right side
    392,472,854.32x = 117,118,969,422,434,160
  5. Step 5: Solve for x
    x = 117,118,969,422,434,160/392,472,854.32
  6. Step 6: Final answer
    x = 298,412,917.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.