Home / 123,418,873.74-170,335,396.74-76,391,031.48

Finding the Fourth Proportional to 123,418,873.74, 170,335,396.74 and 76,391,031.48

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Solution

The fourth proportional to 123,418,873.74, 170,335,396.74 and 76,391,031.48 is: 105,430,362.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,418,873.74 : 170,335,396.74 = 76,391,031.48 : x
  2. Step 2: Convert to fraction form
    123,418,873.74/170,335,396.74 = 76,391,031.48/x
  3. Step 3: Cross multiply
    123,418,873.74x = 170,335,396.74 × 76,391,031.48
  4. Step 4: Simplify right side
    123,418,873.74x = 13,012,096,654,523,630
  5. Step 5: Solve for x
    x = 13,012,096,654,523,630/123,418,873.74
  6. Step 6: Final answer
    x = 105,430,362.96

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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.