Home / 20,010,869.40-30,030,300.90-8,659,464.60

Finding the Fourth Proportional to 20,010,869.40, 30,030,300.90 and 8,659,464.60

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Solution

The fourth proportional to 20,010,869.40, 30,030,300.90 and 8,659,464.60 is: 12,995,253.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,010,869.40 : 30,030,300.90 = 8,659,464.60 : x
  2. Step 2: Convert to fraction form
    20,010,869.40/30,030,300.90 = 8,659,464.60/x
  3. Step 3: Cross multiply
    20,010,869.40x = 30,030,300.90 × 8,659,464.60
  4. Step 4: Simplify right side
    20,010,869.40x = 260,046,327,570,898.12
  5. Step 5: Solve for x
    x = 260,046,327,570,898.12/20,010,869.40
  6. Step 6: Final answer
    x = 12,995,253.85

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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.