Home / 13,207,471.80-19,811,207.70-11,648,578.20

Finding the Fourth Proportional to 13,207,471.80, 19,811,207.70 and 11,648,578.20

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Solution

The fourth proportional to 13,207,471.80, 19,811,207.70 and 11,648,578.20 is: 17,472,867.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207,471.80 : 19,811,207.70 = 11,648,578.20 : x
  2. Step 2: Convert to fraction form
    13,207,471.80/19,811,207.70 = 11,648,578.20/x
  3. Step 3: Cross multiply
    13,207,471.80x = 19,811,207.70 × 11,648,578.20
  4. Step 4: Simplify right side
    13,207,471.80x = 230,772,402,129,892.12
  5. Step 5: Solve for x
    x = 230,772,402,129,892.12/13,207,471.80
  6. Step 6: Final answer
    x = 17,472,867.30

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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.