Home / 138,240,292.59-190,777,399.46-79,503,003.59

Finding the Fourth Proportional to 138,240,292.59, 190,777,399.46 and 79,503,003.59

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Solution

The fourth proportional to 138,240,292.59, 190,777,399.46 and 79,503,003.59 is: 109,717,478.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,240,292.59 : 190,777,399.46 = 79,503,003.59 : x
  2. Step 2: Convert to fraction form
    138,240,292.59/190,777,399.46 = 79,503,003.59/x
  3. Step 3: Cross multiply
    138,240,292.59x = 190,777,399.46 × 79,503,003.59
  4. Step 4: Simplify right side
    138,240,292.59x = 15,167,376,272,807,842
  5. Step 5: Solve for x
    x = 15,167,376,272,807,842/138,240,292.59
  6. Step 6: Final answer
    x = 109,717,478.09

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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.