Home / 138,050,809.84-190,514,103.96-76,175,134.12

Finding the Fourth Proportional to 138,050,809.84, 190,514,103.96 and 76,175,134.12

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Solution

The fourth proportional to 138,050,809.84, 190,514,103.96 and 76,175,134.12 is: 105,123,884.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,050,809.84 : 190,514,103.96 = 76,175,134.12 : x
  2. Step 2: Convert to fraction form
    138,050,809.84/190,514,103.96 = 76,175,134.12/x
  3. Step 3: Cross multiply
    138,050,809.84x = 190,514,103.96 × 76,175,134.12
  4. Step 4: Simplify right side
    138,050,809.84x = 14,512,437,420,904,624
  5. Step 5: Solve for x
    x = 14,512,437,420,904,624/138,050,809.84
  6. Step 6: Final answer
    x = 105,123,884.73

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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.