Home / 30,327,403.80-45,491,105.70-18,848,278.20

Finding the Fourth Proportional to 30,327,403.80, 45,491,105.70 and 18,848,278.20

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Solution

The fourth proportional to 30,327,403.80, 45,491,105.70 and 18,848,278.20 is: 28,272,417.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,327,403.80 : 45,491,105.70 = 18,848,278.20 : x
  2. Step 2: Convert to fraction form
    30,327,403.80/45,491,105.70 = 18,848,278.20/x
  3. Step 3: Cross multiply
    30,327,403.80x = 45,491,105.70 × 18,848,278.20
  4. Step 4: Simplify right side
    30,327,403.80x = 857,429,015,859,205.75
  5. Step 5: Solve for x
    x = 857,429,015,859,205.75/30,327,403.80
  6. Step 6: Final answer
    x = 28,272,417.30

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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.