Home / 10,754,386.40-16,131,579.60-5,379,615.20

Finding the Fourth Proportional to 10,754,386.40, 16,131,579.60 and 5,379,615.20

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Solution

The fourth proportional to 10,754,386.40, 16,131,579.60 and 5,379,615.20 is: 8,069,422.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,754,386.40 : 16,131,579.60 = 5,379,615.20 : x
  2. Step 2: Convert to fraction form
    10,754,386.40/16,131,579.60 = 5,379,615.20/x
  3. Step 3: Cross multiply
    10,754,386.40x = 16,131,579.60 × 5,379,615.20
  4. Step 4: Simplify right side
    10,754,386.40x = 86,781,690,816,169.92
  5. Step 5: Solve for x
    x = 86,781,690,816,169.92/10,754,386.40
  6. Step 6: Final answer
    x = 8,069,422.80

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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.