Home / 8,740,949.80-13,111,424.70-7,890,644.20

Finding the Fourth Proportional to 8,740,949.80, 13,111,424.70 and 7,890,644.20

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Solution

The fourth proportional to 8,740,949.80, 13,111,424.70 and 7,890,644.20 is: 11,835,966.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,740,949.80 : 13,111,424.70 = 7,890,644.20 : x
  2. Step 2: Convert to fraction form
    8,740,949.80/13,111,424.70 = 7,890,644.20/x
  3. Step 3: Cross multiply
    8,740,949.80x = 13,111,424.70 × 7,890,644.20
  4. Step 4: Simplify right side
    8,740,949.80x = 103,457,587,262,791.73
  5. Step 5: Solve for x
    x = 103,457,587,262,791.73/8,740,949.80
  6. Step 6: Final answer
    x = 11,835,966.30

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Double scale
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Similar ratio
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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.