Home / 20,191,475.40-30,287,213.10-12,228,851.40

Finding the Fourth Proportional to 20,191,475.40, 30,287,213.10 and 12,228,851.40

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Solution

The fourth proportional to 20,191,475.40, 30,287,213.10 and 12,228,851.40 is: 18,343,277.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191,475.40 : 30,287,213.10 = 12,228,851.40 : x
  2. Step 2: Convert to fraction form
    20,191,475.40/30,287,213.10 = 12,228,851.40/x
  3. Step 3: Cross multiply
    20,191,475.40x = 30,287,213.10 × 12,228,851.40
  4. Step 4: Simplify right side
    20,191,475.40x = 370,377,828,320,033.38
  5. Step 5: Solve for x
    x = 370,377,828,320,033.38/20,191,475.40
  6. Step 6: Final answer
    x = 18,343,277.10

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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.