Home / 12,948,810.30-17,869,355.52-7,147,590.50

Finding the Fourth Proportional to 12,948,810.30, 17,869,355.52 and 7,147,590.50

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Solution

The fourth proportional to 12,948,810.30, 17,869,355.52 and 7,147,590.50 is: 9,863,673.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,810.30 : 17,869,355.52 = 7,147,590.50 : x
  2. Step 2: Convert to fraction form
    12,948,810.30/17,869,355.52 = 7,147,590.50/x
  3. Step 3: Cross multiply
    12,948,810.30x = 17,869,355.52 × 7,147,590.50
  4. Step 4: Simplify right side
    12,948,810.30x = 127,722,835,755,874.56
  5. Step 5: Solve for x
    x = 127,722,835,755,874.56/12,948,810.30
  6. Step 6: Final answer
    x = 9,863,673.40

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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.