Home / 12,430,151.20-17,154,469.78-7,535,579.60

Finding the Fourth Proportional to 12,430,151.20, 17,154,469.78 and 7,535,579.60

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Solution

The fourth proportional to 12,430,151.20, 17,154,469.78 and 7,535,579.60 is: 10,399,621.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,430,151.20 : 17,154,469.78 = 7,535,579.60 : x
  2. Step 2: Convert to fraction form
    12,430,151.20/17,154,469.78 = 7,535,579.60/x
  3. Step 3: Cross multiply
    12,430,151.20x = 17,154,469.78 × 7,535,579.60
  4. Step 4: Simplify right side
    12,430,151.20x = 129,268,872,522,984.48
  5. Step 5: Solve for x
    x = 129,268,872,522,984.48/12,430,151.20
  6. Step 6: Final answer
    x = 10,399,621.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.