Home / 15,120,513.80-22,680,770.70-13,561,620.20

Finding the Fourth Proportional to 15,120,513.80, 22,680,770.70 and 13,561,620.20

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Solution

The fourth proportional to 15,120,513.80, 22,680,770.70 and 13,561,620.20 is: 20,342,430.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,120,513.80 : 22,680,770.70 = 13,561,620.20 : x
  2. Step 2: Convert to fraction form
    15,120,513.80/22,680,770.70 = 13,561,620.20/x
  3. Step 3: Cross multiply
    15,120,513.80x = 22,680,770.70 × 13,561,620.20
  4. Step 4: Simplify right side
    15,120,513.80x = 307,587,998,076,688.12
  5. Step 5: Solve for x
    x = 307,587,998,076,688.12/15,120,513.80
  6. Step 6: Final answer
    x = 20,342,430.30

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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.