Home / 10,969,237.20-16,453,855.80-7,780,591.20

Finding the Fourth Proportional to 10,969,237.20, 16,453,855.80 and 7,780,591.20

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Solution

The fourth proportional to 10,969,237.20, 16,453,855.80 and 7,780,591.20 is: 11,670,886.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,969,237.20 : 16,453,855.80 = 7,780,591.20 : x
  2. Step 2: Convert to fraction form
    10,969,237.20/16,453,855.80 = 7,780,591.20/x
  3. Step 3: Cross multiply
    10,969,237.20x = 16,453,855.80 × 7,780,591.20
  4. Step 4: Simplify right side
    10,969,237.20x = 128,020,725,643,548.97
  5. Step 5: Solve for x
    x = 128,020,725,643,548.97/10,969,237.20
  6. Step 6: Final answer
    x = 11,670,886.80

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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.