Home / 8,020,419.40-12,030,629.10-6,691,816.90

Finding the Fourth Proportional to 8,020,419.40, 12,030,629.10 and 6,691,816.90

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Solution

The fourth proportional to 8,020,419.40, 12,030,629.10 and 6,691,816.90 is: 10,037,725.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,020,419.40 : 12,030,629.10 = 6,691,816.90 : x
  2. Step 2: Convert to fraction form
    8,020,419.40/12,030,629.10 = 6,691,816.90/x
  3. Step 3: Cross multiply
    8,020,419.40x = 12,030,629.10 × 6,691,816.90
  4. Step 4: Simplify right side
    8,020,419.40x = 80,506,767,129,011.80
  5. Step 5: Solve for x
    x = 80,506,767,129,011.80/8,020,419.40
  6. Step 6: Final answer
    x = 10,037,725.35

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Similar ratio
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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.