Home / 138,050,810.84-190,514,105.34-76,175,135.12

Finding the Fourth Proportional to 138,050,810.84, 190,514,105.34 and 76,175,135.12

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Solution

The fourth proportional to 138,050,810.84, 190,514,105.34 and 76,175,135.12 is: 105,123,886.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,050,810.84 : 190,514,105.34 = 76,175,135.12 : x
  2. Step 2: Convert to fraction form
    138,050,810.84/190,514,105.34 = 76,175,135.12/x
  3. Step 3: Cross multiply
    138,050,810.84x = 190,514,105.34 × 76,175,135.12
  4. Step 4: Simplify right side
    138,050,810.84x = 14,512,437,716,540,414
  5. Step 5: Solve for x
    x = 14,512,437,716,540,414/138,050,810.84
  6. Step 6: Final answer
    x = 105,123,886.11

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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.