Home / 10,719,018.70-16,078,528.05-9,177,839.80

Finding the Fourth Proportional to 10,719,018.70, 16,078,528.05 and 9,177,839.80

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Solution

The fourth proportional to 10,719,018.70, 16,078,528.05 and 9,177,839.80 is: 13,766,759.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,719,018.70 : 16,078,528.05 = 9,177,839.80 : x
  2. Step 2: Convert to fraction form
    10,719,018.70/16,078,528.05 = 9,177,839.80/x
  3. Step 3: Cross multiply
    10,719,018.70x = 16,078,528.05 × 9,177,839.80
  4. Step 4: Simplify right side
    10,719,018.70x = 147,566,154,662,706.41
  5. Step 5: Solve for x
    x = 147,566,154,662,706.41/10,719,018.70
  6. Step 6: Final answer
    x = 13,766,759.70

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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.