Home / 30,327,445.80-45,491,168.70-18,848,320.20

Finding the Fourth Proportional to 30,327,445.80, 45,491,168.70 and 18,848,320.20

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Solution

The fourth proportional to 30,327,445.80, 45,491,168.70 and 18,848,320.20 is: 28,272,480.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,327,445.80 : 45,491,168.70 = 18,848,320.20 : x
  2. Step 2: Convert to fraction form
    30,327,445.80/45,491,168.70 = 18,848,320.20/x
  3. Step 3: Cross multiply
    30,327,445.80x = 45,491,168.70 × 18,848,320.20
  4. Step 4: Simplify right side
    30,327,445.80x = 857,432,113,929,817.75
  5. Step 5: Solve for x
    x = 857,432,113,929,817.75/30,327,445.80
  6. Step 6: Final answer
    x = 28,272,480.30

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1.5x scale

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.