Home / 20,131,254.60-30,189,008.70-7,345,177.80

Finding the Fourth Proportional to 20,131,254.60, 30,189,008.70 and 7,345,177.80

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Solution

The fourth proportional to 20,131,254.60, 30,189,008.70 and 7,345,177.80 is: 11,014,894.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131,254.60 : 30,189,008.70 = 7,345,177.80 : x
  2. Step 2: Convert to fraction form
    20,131,254.60/30,189,008.70 = 7,345,177.80/x
  3. Step 3: Cross multiply
    20,131,254.60x = 30,189,008.70 × 7,345,177.80
  4. Step 4: Simplify right side
    20,131,254.60x = 221,743,636,507,246.84
  5. Step 5: Solve for x
    x = 221,743,636,507,246.84/20,131,254.60
  6. Step 6: Final answer
    x = 11,014,894.05

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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.