Home / 13,287,126.70-18,336,235.31-7,175,555.20

Finding the Fourth Proportional to 13,287,126.70, 18,336,235.31 and 7,175,555.20

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Solution

The fourth proportional to 13,287,126.70, 18,336,235.31 and 7,175,555.20 is: 9,902,266.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,287,126.70 : 18,336,235.31 = 7,175,555.20 : x
  2. Step 2: Convert to fraction form
    13,287,126.70/18,336,235.31 = 7,175,555.20/x
  3. Step 3: Cross multiply
    13,287,126.70x = 18,336,235.31 × 7,175,555.20
  4. Step 4: Simplify right side
    13,287,126.70x = 131,572,668,499,535.16
  5. Step 5: Solve for x
    x = 131,572,668,499,535.16/13,287,126.70
  6. Step 6: Final answer
    x = 9,902,266.42

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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.