Home / 13,123,797.28-18,111,000.03-7,618,447.60

Finding the Fourth Proportional to 13,123,797.28, 18,111,000.03 and 7,618,447.60

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Solution

The fourth proportional to 13,123,797.28, 18,111,000.03 and 7,618,447.60 is: 10,513,550.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,123,797.28 : 18,111,000.03 = 7,618,447.60 : x
  2. Step 2: Convert to fraction form
    13,123,797.28/18,111,000.03 = 7,618,447.60/x
  3. Step 3: Cross multiply
    13,123,797.28x = 18,111,000.03 × 7,618,447.60
  4. Step 4: Simplify right side
    13,123,797.28x = 137,977,704,712,153.44
  5. Step 5: Solve for x
    x = 137,977,704,712,153.44/13,123,797.28
  6. Step 6: Final answer
    x = 10,513,550.44

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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.