Home / 13,292,938.60-18,344,579.60-7,412,515.36

Finding the Fourth Proportional to 13,292,938.60, 18,344,579.60 and 7,412,515.36

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Solution

The fourth proportional to 13,292,938.60, 18,344,579.60 and 7,412,515.36 is: 10,229,452.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,292,938.60 : 18,344,579.60 = 7,412,515.36 : x
  2. Step 2: Convert to fraction form
    13,292,938.60/18,344,579.60 = 7,412,515.36/x
  3. Step 3: Cross multiply
    13,292,938.60x = 18,344,579.60 × 7,412,515.36
  4. Step 4: Simplify right side
    13,292,938.60x = 135,979,478,057,742.67
  5. Step 5: Solve for x
    x = 135,979,478,057,742.67/13,292,938.60
  6. Step 6: Final answer
    x = 10,229,452.05

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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.