Home / 138,050,839.78-190,514,145.27-76,175,164.06

Finding the Fourth Proportional to 138,050,839.78, 190,514,145.27 and 76,175,164.06

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Solution

The fourth proportional to 138,050,839.78, 190,514,145.27 and 76,175,164.06 is: 105,123,926.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,050,839.78 : 190,514,145.27 = 76,175,164.06 : x
  2. Step 2: Convert to fraction form
    138,050,839.78/190,514,145.27 = 76,175,164.06/x
  3. Step 3: Cross multiply
    138,050,839.78x = 190,514,145.27 × 76,175,164.06
  4. Step 4: Simplify right side
    138,050,839.78x = 14,512,446,271,502,296
  5. Step 5: Solve for x
    x = 14,512,446,271,502,296/138,050,839.78
  6. Step 6: Final answer
    x = 105,123,926.05

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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.