Home / 123,266,549.78-170,113,185.90-68,262,406.28

Finding the Fourth Proportional to 123,266,549.78, 170,113,185.90 and 68,262,406.28

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Solution

The fourth proportional to 123,266,549.78, 170,113,185.90 and 68,262,406.28 is: 94,205,081.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,266,549.78 : 170,113,185.90 = 68,262,406.28 : x
  2. Step 2: Convert to fraction form
    123,266,549.78/170,113,185.90 = 68,262,406.28/x
  3. Step 3: Cross multiply
    123,266,549.78x = 170,113,185.90 × 68,262,406.28
  4. Step 4: Simplify right side
    123,266,549.78x = 11,612,335,408,640,402
  5. Step 5: Solve for x
    x = 11,612,335,408,640,402/123,266,549.78
  6. Step 6: Final answer
    x = 94,205,081.83

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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.