Home / 13,207,471.20-19,811,206.80-8,424,502.20

Finding the Fourth Proportional to 13,207,471.20, 19,811,206.80 and 8,424,502.20

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Solution

The fourth proportional to 13,207,471.20, 19,811,206.80 and 8,424,502.20 is: 12,636,753.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207,471.20 : 19,811,206.80 = 8,424,502.20 : x
  2. Step 2: Convert to fraction form
    13,207,471.20/19,811,206.80 = 8,424,502.20/x
  3. Step 3: Cross multiply
    13,207,471.20x = 19,811,206.80 × 8,424,502.20
  4. Step 4: Simplify right side
    13,207,471.20x = 166,899,555,271,254.94
  5. Step 5: Solve for x
    x = 166,899,555,271,254.94/13,207,471.20
  6. Step 6: Final answer
    x = 12,636,753.30

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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.