Home / 78,052,197.23-107,711,948.03-42,770,862.62

Finding the Fourth Proportional to 78,052,197.23, 107,711,948.03 and 42,770,862.62

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Solution

The fourth proportional to 78,052,197.23, 107,711,948.03 and 42,770,862.62 is: 59,023,744.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,052,197.23 : 107,711,948.03 = 42,770,862.62 : x
  2. Step 2: Convert to fraction form
    78,052,197.23/107,711,948.03 = 42,770,862.62/x
  3. Step 3: Cross multiply
    78,052,197.23x = 107,711,948.03 × 42,770,862.62
  4. Step 4: Simplify right side
    78,052,197.23x = 4,606,932,930,971,296
  5. Step 5: Solve for x
    x = 4,606,932,930,971,296/78,052,197.23
  6. Step 6: Final answer
    x = 59,023,744.30

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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.