Home / 13,155,507.12-18,154,734.48-7,354,611.12

Finding the Fourth Proportional to 13,155,507.12, 18,154,734.48 and 7,354,611.12

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Solution

The fourth proportional to 13,155,507.12, 18,154,734.48 and 7,354,611.12 is: 10,149,438.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,155,507.12 : 18,154,734.48 = 7,354,611.12 : x
  2. Step 2: Convert to fraction form
    13,155,507.12/18,154,734.48 = 7,354,611.12/x
  3. Step 3: Cross multiply
    13,155,507.12x = 18,154,734.48 × 7,354,611.12
  4. Step 4: Simplify right side
    13,155,507.12x = 133,521,012,087,255.42
  5. Step 5: Solve for x
    x = 133,521,012,087,255.42/13,155,507.12
  6. Step 6: Final answer
    x = 10,149,438.62

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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.