Home / 8,863,817.80-12,229,985.73-5,379,077.65

Finding the Fourth Proportional to 8,863,817.80, 12,229,985.73 and 5,379,077.65

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Solution

The fourth proportional to 8,863,817.80, 12,229,985.73 and 5,379,077.65 is: 7,421,863.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,863,817.80 : 12,229,985.73 = 5,379,077.65 : x
  2. Step 2: Convert to fraction form
    8,863,817.80/12,229,985.73 = 5,379,077.65/x
  3. Step 3: Cross multiply
    8,863,817.80x = 12,229,985.73 × 5,379,077.65
  4. Step 4: Simplify right side
    8,863,817.80x = 65,786,042,900,061.95
  5. Step 5: Solve for x
    x = 65,786,042,900,061.95/8,863,817.80
  6. Step 6: Final answer
    x = 7,421,863.17

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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.