Home / 10,858,909.60-16,288,364.40-7,221,491.20

Finding the Fourth Proportional to 10,858,909.60, 16,288,364.40 and 7,221,491.20

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Solution

The fourth proportional to 10,858,909.60, 16,288,364.40 and 7,221,491.20 is: 10,832,236.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,858,909.60 : 16,288,364.40 = 7,221,491.20 : x
  2. Step 2: Convert to fraction form
    10,858,909.60/16,288,364.40 = 7,221,491.20/x
  3. Step 3: Cross multiply
    10,858,909.60x = 16,288,364.40 × 7,221,491.20
  4. Step 4: Simplify right side
    10,858,909.60x = 117,626,280,176,993.28
  5. Step 5: Solve for x
    x = 117,626,280,176,993.28/10,858,909.60
  6. Step 6: Final answer
    x = 10,832,236.80

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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.