Home / 13,653,386.20-18,840,916.75-7,457,199.22

Finding the Fourth Proportional to 13,653,386.20, 18,840,916.75 and 7,457,199.22

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Solution

The fourth proportional to 13,653,386.20, 18,840,916.75 and 7,457,199.22 is: 10,290,521.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,653,386.20 : 18,840,916.75 = 7,457,199.22 : x
  2. Step 2: Convert to fraction form
    13,653,386.20/18,840,916.75 = 7,457,199.22/x
  3. Step 3: Cross multiply
    13,653,386.20x = 18,840,916.75 × 7,457,199.22
  4. Step 4: Simplify right side
    13,653,386.20x = 140,500,469,560,694.36
  5. Step 5: Solve for x
    x = 140,500,469,560,694.36/13,653,386.20
  6. Step 6: Final answer
    x = 10,290,521.89

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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.