Home / 13,135,964.40-18,127,938.52-7,334,550

Finding the Fourth Proportional to 13,135,964.40, 18,127,938.52 and 7,334,550

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Solution

The fourth proportional to 13,135,964.40, 18,127,938.52 and 7,334,550 is: 10,121,850.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135,964.40 : 18,127,938.52 = 7,334,550 : x
  2. Step 2: Convert to fraction form
    13,135,964.40/18,127,938.52 = 7,334,550/x
  3. Step 3: Cross multiply
    13,135,964.40x = 18,127,938.52 × 7,334,550
  4. Step 4: Simplify right side
    13,135,964.40x = 132,960,271,471,866
  5. Step 5: Solve for x
    x = 132,960,271,471,866/13,135,964.40
  6. Step 6: Final answer
    x = 10,121,850.78

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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.