Home / 13,337,043.20-18,405,138.29-7,225,471.70

Finding the Fourth Proportional to 13,337,043.20, 18,405,138.29 and 7,225,471.70

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Solution

The fourth proportional to 13,337,043.20, 18,405,138.29 and 7,225,471.70 is: 9,971,161.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,337,043.20 : 18,405,138.29 = 7,225,471.70 : x
  2. Step 2: Convert to fraction form
    13,337,043.20/18,405,138.29 = 7,225,471.70/x
  3. Step 3: Cross multiply
    13,337,043.20x = 18,405,138.29 × 7,225,471.70
  4. Step 4: Simplify right side
    13,337,043.20x = 132,985,805,720,828.34
  5. Step 5: Solve for x
    x = 132,985,805,720,828.34/13,337,043.20
  6. Step 6: Final answer
    x = 9,971,161.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.