Home / 25,278,679.80-37,918,019.70-21,023,652.60

Finding the Fourth Proportional to 25,278,679.80, 37,918,019.70 and 21,023,652.60

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Solution

The fourth proportional to 25,278,679.80, 37,918,019.70 and 21,023,652.60 is: 31,535,478.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,278,679.80 : 37,918,019.70 = 21,023,652.60 : x
  2. Step 2: Convert to fraction form
    25,278,679.80/37,918,019.70 = 21,023,652.60/x
  3. Step 3: Cross multiply
    25,278,679.80x = 37,918,019.70 × 21,023,652.60
  4. Step 4: Simplify right side
    25,278,679.80x = 797,175,273,452,756.38
  5. Step 5: Solve for x
    x = 797,175,273,452,756.38/25,278,679.80
  6. Step 6: Final answer
    x = 31,535,478.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.