Home / 8,869,857.40-13,304,786.10-7,972,312.60

Finding the Fourth Proportional to 8,869,857.40, 13,304,786.10 and 7,972,312.60

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Solution

The fourth proportional to 8,869,857.40, 13,304,786.10 and 7,972,312.60 is: 11,958,468.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869,857.40 : 13,304,786.10 = 7,972,312.60 : x
  2. Step 2: Convert to fraction form
    8,869,857.40/13,304,786.10 = 7,972,312.60/x
  3. Step 3: Cross multiply
    8,869,857.40x = 13,304,786.10 × 7,972,312.60
  4. Step 4: Simplify right side
    8,869,857.40x = 106,069,913,865,334.86
  5. Step 5: Solve for x
    x = 106,069,913,865,334.86/8,869,857.40
  6. Step 6: Final answer
    x = 11,958,468.90

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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.