Home / 8,266,307.20-12,399,460.80-4,221,450.70

Finding the Fourth Proportional to 8,266,307.20, 12,399,460.80 and 4,221,450.70

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Solution

The fourth proportional to 8,266,307.20, 12,399,460.80 and 4,221,450.70 is: 6,332,176.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,266,307.20 : 12,399,460.80 = 4,221,450.70 : x
  2. Step 2: Convert to fraction form
    8,266,307.20/12,399,460.80 = 4,221,450.70/x
  3. Step 3: Cross multiply
    8,266,307.20x = 12,399,460.80 × 4,221,450.70
  4. Step 4: Simplify right side
    8,266,307.20x = 52,343,712,473,782.56
  5. Step 5: Solve for x
    x = 52,343,712,473,782.56/8,266,307.20
  6. Step 6: Final answer
    x = 6,332,176.05

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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.