Home / 8,321,875.40-12,482,813.10-5,116,608.20

Finding the Fourth Proportional to 8,321,875.40, 12,482,813.10 and 5,116,608.20

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Solution

The fourth proportional to 8,321,875.40, 12,482,813.10 and 5,116,608.20 is: 7,674,912.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321,875.40 : 12,482,813.10 = 5,116,608.20 : x
  2. Step 2: Convert to fraction form
    8,321,875.40/12,482,813.10 = 5,116,608.20/x
  3. Step 3: Cross multiply
    8,321,875.40x = 12,482,813.10 × 5,116,608.20
  4. Step 4: Simplify right side
    8,321,875.40x = 63,869,663,866,527.42
  5. Step 5: Solve for x
    x = 63,869,663,866,527.42/8,321,875.40
  6. Step 6: Final answer
    x = 7,674,912.30

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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.