Home / 138,798,313.62-191,543,767.56-76,073,909.73

Finding the Fourth Proportional to 138,798,313.62, 191,543,767.56 and 76,073,909.73

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Solution

The fourth proportional to 138,798,313.62, 191,543,767.56 and 76,073,909.73 is: 104,983,143.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,798,313.62 : 191,543,767.56 = 76,073,909.73 : x
  2. Step 2: Convert to fraction form
    138,798,313.62/191,543,767.56 = 76,073,909.73/x
  3. Step 3: Cross multiply
    138,798,313.62x = 191,543,767.56 × 76,073,909.73
  4. Step 4: Simplify right side
    138,798,313.62x = 14,571,483,282,703,544
  5. Step 5: Solve for x
    x = 14,571,483,282,703,544/138,798,313.62
  6. Step 6: Final answer
    x = 104,983,143.55

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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.