Home / 20,120,458.60-30,180,687.90-4,974,390.10

Finding the Fourth Proportional to 20,120,458.60, 30,180,687.90 and 4,974,390.10

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Solution

The fourth proportional to 20,120,458.60, 30,180,687.90 and 4,974,390.10 is: 7,461,585.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,120,458.60 : 30,180,687.90 = 4,974,390.10 : x
  2. Step 2: Convert to fraction form
    20,120,458.60/30,180,687.90 = 4,974,390.10/x
  3. Step 3: Cross multiply
    20,120,458.60x = 30,180,687.90 × 4,974,390.10
  4. Step 4: Simplify right side
    20,120,458.60x = 150,130,515,100,949.78
  5. Step 5: Solve for x
    x = 150,130,515,100,949.78/20,120,458.60
  6. Step 6: Final answer
    x = 7,461,585.15

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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.