Home / 243,221,872.32-335,651,614.56-138,797,864.64

Finding the Fourth Proportional to 243,221,872.32, 335,651,614.56 and 138,797,864.64

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Solution

The fourth proportional to 243,221,872.32, 335,651,614.56 and 138,797,864.64 is: 191,544,152.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,221,872.32 : 335,651,614.56 = 138,797,864.64 : x
  2. Step 2: Convert to fraction form
    243,221,872.32/335,651,614.56 = 138,797,864.64/x
  3. Step 3: Cross multiply
    243,221,872.32x = 335,651,614.56 × 138,797,864.64
  4. Step 4: Simplify right side
    243,221,872.32x = 46,587,727,363,896,328
  5. Step 5: Solve for x
    x = 46,587,727,363,896,328/243,221,872.32
  6. Step 6: Final answer
    x = 191,544,152.34

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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.