Home / 12,223,321.60-18,354,566.40-9,719,795.20

Finding the Fourth Proportional to 12,223,321.60, 18,354,566.40 and 9,719,795.20

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Solution

The fourth proportional to 12,223,321.60, 18,354,566.40 and 9,719,795.20 is: 14,595,265.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,223,321.60 : 18,354,566.40 = 9,719,795.20 : x
  2. Step 2: Convert to fraction form
    12,223,321.60/18,354,566.40 = 9,719,795.20/x
  3. Step 3: Cross multiply
    12,223,321.60x = 18,354,566.40 × 9,719,795.20
  4. Step 4: Simplify right side
    12,223,321.60x = 178,402,626,392,801.25
  5. Step 5: Solve for x
    x = 178,402,626,392,801.25/12,223,321.60
  6. Step 6: Final answer
    x = 14,595,265.69

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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.