Home / 30,327,107.10-45,490,660.65-12,140,015.10

Finding the Fourth Proportional to 30,327,107.10, 45,490,660.65 and 12,140,015.10

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Solution

The fourth proportional to 30,327,107.10, 45,490,660.65 and 12,140,015.10 is: 18,210,022.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,327,107.10 : 45,490,660.65 = 12,140,015.10 : x
  2. Step 2: Convert to fraction form
    30,327,107.10/45,490,660.65 = 12,140,015.10/x
  3. Step 3: Cross multiply
    30,327,107.10x = 45,490,660.65 × 12,140,015.10
  4. Step 4: Simplify right side
    30,327,107.10x = 552,257,307,199,975.75
  5. Step 5: Solve for x
    x = 552,257,307,199,975.75/30,327,107.10
  6. Step 6: Final answer
    x = 18,210,022.65

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Similar ratio
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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.