Home / 30,540,819.30-45,784,656.90-18,397,392.45

Finding the Fourth Proportional to 30,540,819.30, 45,784,656.90 and 18,397,392.45

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Solution

The fourth proportional to 30,540,819.30, 45,784,656.90 and 18,397,392.45 is: 27,580,082.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,540,819.30 : 45,784,656.90 = 18,397,392.45 : x
  2. Step 2: Convert to fraction form
    30,540,819.30/45,784,656.90 = 18,397,392.45/x
  3. Step 3: Cross multiply
    30,540,819.30x = 45,784,656.90 × 18,397,392.45
  4. Step 4: Simplify right side
    30,540,819.30x = 842,318,301,177,900.38
  5. Step 5: Solve for x
    x = 842,318,301,177,900.38/30,540,819.30
  6. Step 6: Final answer
    x = 27,580,082.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.