Home / 10,253,860.80-15,380,791.20-8,586,686.40

Finding the Fourth Proportional to 10,253,860.80, 15,380,791.20 and 8,586,686.40

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Solution

The fourth proportional to 10,253,860.80, 15,380,791.20 and 8,586,686.40 is: 12,880,029.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,253,860.80 : 15,380,791.20 = 8,586,686.40 : x
  2. Step 2: Convert to fraction form
    10,253,860.80/15,380,791.20 = 8,586,686.40/x
  3. Step 3: Cross multiply
    10,253,860.80x = 15,380,791.20 × 8,586,686.40
  4. Step 4: Simplify right side
    10,253,860.80x = 132,070,030,618,279.67
  5. Step 5: Solve for x
    x = 132,070,030,618,279.67/10,253,860.80
  6. Step 6: Final answer
    x = 12,880,029.60

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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.