Home / 10,402,481.65-15,603,722.48-9,142,769.65

Finding the Fourth Proportional to 10,402,481.65, 15,603,722.48 and 9,142,769.65

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Solution

The fourth proportional to 10,402,481.65, 15,603,722.48 and 9,142,769.65 is: 13,714,154.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,402,481.65 : 15,603,722.48 = 9,142,769.65 : x
  2. Step 2: Convert to fraction form
    10,402,481.65/15,603,722.48 = 9,142,769.65/x
  3. Step 3: Cross multiply
    10,402,481.65x = 15,603,722.48 × 9,142,769.65
  4. Step 4: Simplify right side
    10,402,481.65x = 142,661,240,271,452.88
  5. Step 5: Solve for x
    x = 142,661,240,271,452.88/10,402,481.65
  6. Step 6: Final answer
    x = 13,714,154.48

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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.