Home / 20,693,923.11-28,556,246.79-12,429,074.22

Finding the Fourth Proportional to 20,693,923.11, 28,556,246.79 and 12,429,074.22

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Solution

The fourth proportional to 20,693,923.11, 28,556,246.79 and 12,429,074.22 is: 17,151,301.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,693,923.11 : 28,556,246.79 = 12,429,074.22 : x
  2. Step 2: Convert to fraction form
    20,693,923.11/28,556,246.79 = 12,429,074.22/x
  3. Step 3: Cross multiply
    20,693,923.11x = 28,556,246.79 × 12,429,074.22
  4. Step 4: Simplify right side
    20,693,923.11x = 354,927,710,797,546.75
  5. Step 5: Solve for x
    x = 354,927,710,797,546.75/20,693,923.11
  6. Step 6: Final answer
    x = 17,151,301.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.