Home / 12,138,819.60-18,202,980.60-6,071,206.80

Finding the Fourth Proportional to 12,138,819.60, 18,202,980.60 and 6,071,206.80

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Solution

The fourth proportional to 12,138,819.60, 18,202,980.60 and 6,071,206.80 is: 9,104,185.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,138,819.60 : 18,202,980.60 = 6,071,206.80 : x
  2. Step 2: Convert to fraction form
    12,138,819.60/18,202,980.60 = 6,071,206.80/x
  3. Step 3: Cross multiply
    12,138,819.60x = 18,202,980.60 × 6,071,206.80
  4. Step 4: Simplify right side
    12,138,819.60x = 110,514,059,598,988.08
  5. Step 5: Solve for x
    x = 110,514,059,598,988.08/12,138,819.60
  6. Step 6: Final answer
    x = 9,104,185.02

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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.