Home / 8,020,406.40-12,030,609.60-6,691,803.90

Finding the Fourth Proportional to 8,020,406.40, 12,030,609.60 and 6,691,803.90

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Solution

The fourth proportional to 8,020,406.40, 12,030,609.60 and 6,691,803.90 is: 10,037,705.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,020,406.40 : 12,030,609.60 = 6,691,803.90 : x
  2. Step 2: Convert to fraction form
    8,020,406.40/12,030,609.60 = 6,691,803.90/x
  3. Step 3: Cross multiply
    8,020,406.40x = 12,030,609.60 × 6,691,803.90
  4. Step 4: Simplify right side
    8,020,406.40x = 80,506,480,240,657.44
  5. Step 5: Solve for x
    x = 80,506,480,240,657.44/8,020,406.40
  6. Step 6: Final answer
    x = 10,037,705.85

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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.