Home / 10,555,908.70-15,815,200.65-9,361,515.10

Finding the Fourth Proportional to 10,555,908.70, 15,815,200.65 and 9,361,515.10

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Solution

The fourth proportional to 10,555,908.70, 15,815,200.65 and 9,361,515.10 is: 14,025,721.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,555,908.70 : 15,815,200.65 = 9,361,515.10 : x
  2. Step 2: Convert to fraction form
    10,555,908.70/15,815,200.65 = 9,361,515.10/x
  3. Step 3: Cross multiply
    10,555,908.70x = 15,815,200.65 × 9,361,515.10
  4. Step 4: Simplify right side
    10,555,908.70x = 148,054,239,694,504.81
  5. Step 5: Solve for x
    x = 148,054,239,694,504.81/10,555,908.70
  6. Step 6: Final answer
    x = 14,025,721.89

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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.