Home / 10,370,218.20-15,555,327.30-7,178,947.80

Finding the Fourth Proportional to 10,370,218.20, 15,555,327.30 and 7,178,947.80

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Solution

The fourth proportional to 10,370,218.20, 15,555,327.30 and 7,178,947.80 is: 10,768,421.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,370,218.20 : 15,555,327.30 = 7,178,947.80 : x
  2. Step 2: Convert to fraction form
    10,370,218.20/15,555,327.30 = 7,178,947.80/x
  3. Step 3: Cross multiply
    10,370,218.20x = 15,555,327.30 × 7,178,947.80
  4. Step 4: Simplify right side
    10,370,218.20x = 111,670,882,698,614.94
  5. Step 5: Solve for x
    x = 111,670,882,698,614.94/10,370,218.20
  6. Step 6: Final answer
    x = 10,768,421.70

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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.