Home / 20,363,555.80-30,545,333.70-18,131,503.60

Finding the Fourth Proportional to 20,363,555.80, 30,545,333.70 and 18,131,503.60

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Solution

The fourth proportional to 20,363,555.80, 30,545,333.70 and 18,131,503.60 is: 27,197,255.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,363,555.80 : 30,545,333.70 = 18,131,503.60 : x
  2. Step 2: Convert to fraction form
    20,363,555.80/30,545,333.70 = 18,131,503.60/x
  3. Step 3: Cross multiply
    20,363,555.80x = 30,545,333.70 × 18,131,503.60
  4. Step 4: Simplify right side
    20,363,555.80x = 553,832,827,944,751.38
  5. Step 5: Solve for x
    x = 553,832,827,944,751.38/20,363,555.80
  6. Step 6: Final answer
    x = 27,197,255.40

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Similar ratio
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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.