Home / 8,321,853.40-12,482,780.10-5,116,586.20

Finding the Fourth Proportional to 8,321,853.40, 12,482,780.10 and 5,116,586.20

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Solution

The fourth proportional to 8,321,853.40, 12,482,780.10 and 5,116,586.20 is: 7,674,879.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321,853.40 : 12,482,780.10 = 5,116,586.20 : x
  2. Step 2: Convert to fraction form
    8,321,853.40/12,482,780.10 = 5,116,586.20/x
  3. Step 3: Cross multiply
    8,321,853.40x = 12,482,780.10 × 5,116,586.20
  4. Step 4: Simplify right side
    8,321,853.40x = 63,869,220,397,294.62
  5. Step 5: Solve for x
    x = 63,869,220,397,294.62/8,321,853.40
  6. Step 6: Final answer
    x = 7,674,879.30

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Double scale
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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.