Home / 13,123,796.28-18,110,998.65-7,618,446.60

Finding the Fourth Proportional to 13,123,796.28, 18,110,998.65 and 7,618,446.60

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Solution

The fourth proportional to 13,123,796.28, 18,110,998.65 and 7,618,446.60 is: 10,513,549.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,123,796.28 : 18,110,998.65 = 7,618,446.60 : x
  2. Step 2: Convert to fraction form
    13,123,796.28/18,110,998.65 = 7,618,446.60/x
  3. Step 3: Cross multiply
    13,123,796.28x = 18,110,998.65 × 7,618,446.60
  4. Step 4: Simplify right side
    13,123,796.28x = 137,977,676,087,697.08
  5. Step 5: Solve for x
    x = 137,977,676,087,697.08/13,123,796.28
  6. Step 6: Final answer
    x = 10,513,549.06

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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.