Home / 10,115,708.47-15,175,433.89-3,200,928.80

Finding the Fourth Proportional to 10,115,708.47, 15,175,433.89 and 3,200,928.80

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Solution

The fourth proportional to 10,115,708.47, 15,175,433.89 and 3,200,928.80 is: 4,801,985.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,115,708.47 : 15,175,433.89 = 3,200,928.80 : x
  2. Step 2: Convert to fraction form
    10,115,708.47/15,175,433.89 = 3,200,928.80/x
  3. Step 3: Cross multiply
    10,115,708.47x = 15,175,433.89 × 3,200,928.80
  4. Step 4: Simplify right side
    10,115,708.47x = 48,575,483,390,997.03
  5. Step 5: Solve for x
    x = 48,575,483,390,997.03/10,115,708.47
  6. Step 6: Final answer
    x = 4,801,985.30

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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.