Home / 20,211,966.60-30,317,949.90-7,430,810.55

Finding the Fourth Proportional to 20,211,966.60, 30,317,949.90 and 7,430,810.55

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Solution

The fourth proportional to 20,211,966.60, 30,317,949.90 and 7,430,810.55 is: 11,146,215.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211,966.60 : 30,317,949.90 = 7,430,810.55 : x
  2. Step 2: Convert to fraction form
    20,211,966.60/30,317,949.90 = 7,430,810.55/x
  3. Step 3: Cross multiply
    20,211,966.60x = 30,317,949.90 × 7,430,810.55
  4. Step 4: Simplify right side
    20,211,966.60x = 225,286,941,971,291.44
  5. Step 5: Solve for x
    x = 225,286,941,971,291.44/20,211,966.60
  6. Step 6: Final answer
    x = 11,146,215.83

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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.