Home / 123,784,995.60-170,815,805.64-68,778,971.28

Finding the Fourth Proportional to 123,784,995.60, 170,815,805.64 and 68,778,971.28

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Solution

The fourth proportional to 123,784,995.60, 170,815,805.64 and 68,778,971.28 is: 94,910,819.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,784,995.60 : 170,815,805.64 = 68,778,971.28 : x
  2. Step 2: Convert to fraction form
    123,784,995.60/170,815,805.64 = 68,778,971.28/x
  3. Step 3: Cross multiply
    123,784,995.60x = 170,815,805.64 × 68,778,971.28
  4. Step 4: Simplify right side
    123,784,995.60x = 11,748,535,390,283,622
  5. Step 5: Solve for x
    x = 11,748,535,390,283,622/123,784,995.60
  6. Step 6: Final answer
    x = 94,910,819.63

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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.