Home / 138,240,291.09-190,777,397.39-79,503,002.07

Finding the Fourth Proportional to 138,240,291.09, 190,777,397.39 and 79,503,002.07

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Solution

The fourth proportional to 138,240,291.09, 190,777,397.39 and 79,503,002.07 is: 109,717,476.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,240,291.09 : 190,777,397.39 = 79,503,002.07 : x
  2. Step 2: Convert to fraction form
    138,240,291.09/190,777,397.39 = 79,503,002.07/x
  3. Step 3: Cross multiply
    138,240,291.09x = 190,777,397.39 × 79,503,002.07
  4. Step 4: Simplify right side
    138,240,291.09x = 15,167,375,819,208,866
  5. Step 5: Solve for x
    x = 15,167,375,819,208,866/138,240,291.09
  6. Step 6: Final answer
    x = 109,717,476.00

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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.