Home / 7,555,128.30-11,332,692.45-5,445,110.70

Finding the Fourth Proportional to 7,555,128.30, 11,332,692.45 and 5,445,110.70

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Solution

The fourth proportional to 7,555,128.30, 11,332,692.45 and 5,445,110.70 is: 8,167,666.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,555,128.30 : 11,332,692.45 = 5,445,110.70 : x
  2. Step 2: Convert to fraction form
    7,555,128.30/11,332,692.45 = 5,445,110.70/x
  3. Step 3: Cross multiply
    7,555,128.30x = 11,332,692.45 × 5,445,110.70
  4. Step 4: Simplify right side
    7,555,128.30x = 61,707,764,919,304.21
  5. Step 5: Solve for x
    x = 61,707,764,919,304.21/7,555,128.30
  6. Step 6: Final answer
    x = 8,167,666.05

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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.