Home / 7,987,175.40-11,980,763.10-6,569,999.40

Finding the Fourth Proportional to 7,987,175.40, 11,980,763.10 and 6,569,999.40

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Solution

The fourth proportional to 7,987,175.40, 11,980,763.10 and 6,569,999.40 is: 9,854,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,987,175.40 : 11,980,763.10 = 6,569,999.40 : x
  2. Step 2: Convert to fraction form
    7,987,175.40/11,980,763.10 = 6,569,999.40/x
  3. Step 3: Cross multiply
    7,987,175.40x = 11,980,763.10 × 6,569,999.40
  4. Step 4: Simplify right side
    7,987,175.40x = 78,713,606,378,542.14
  5. Step 5: Solve for x
    x = 78,713,606,378,542.14/7,987,175.40
  6. Step 6: Final answer
    x = 9,854,999.10

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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.