Home / 18,687,079.20-28,000,438.20-10,575,933.60

Finding the Fourth Proportional to 18,687,079.20, 28,000,438.20 and 10,575,933.60

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Solution

The fourth proportional to 18,687,079.20, 28,000,438.20 and 10,575,933.60 is: 15,846,819.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,687,079.20 : 28,000,438.20 = 10,575,933.60 : x
  2. Step 2: Convert to fraction form
    18,687,079.20/28,000,438.20 = 10,575,933.60/x
  3. Step 3: Cross multiply
    18,687,079.20x = 28,000,438.20 × 10,575,933.60
  4. Step 4: Simplify right side
    18,687,079.20x = 296,130,775,174,103.50
  5. Step 5: Solve for x
    x = 296,130,775,174,103.50/18,687,079.20
  6. Step 6: Final answer
    x = 15,846,819.72

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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.