Home / 100,537,401.78-138,743,451.90-55,887,566.04

Finding the Fourth Proportional to 100,537,401.78, 138,743,451.90 and 55,887,566.04

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Solution

The fourth proportional to 100,537,401.78, 138,743,451.90 and 55,887,566.04 is: 77,125,862.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,537,401.78 : 138,743,451.90 = 55,887,566.04 : x
  2. Step 2: Convert to fraction form
    100,537,401.78/138,743,451.90 = 55,887,566.04/x
  3. Step 3: Cross multiply
    100,537,401.78x = 138,743,451.90 × 55,887,566.04
  4. Step 4: Simplify right side
    100,537,401.78x = 7,754,033,830,678,814
  5. Step 5: Solve for x
    x = 7,754,033,830,678,814/100,537,401.78
  6. Step 6: Final answer
    x = 77,125,862.55

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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.