Home / 20,974,357.92-28,945,161.36-11,807,335.20

Finding the Fourth Proportional to 20,974,357.92, 28,945,161.36 and 11,807,335.20

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Solution

The fourth proportional to 20,974,357.92, 28,945,161.36 and 11,807,335.20 is: 16,294,430.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,974,357.92 : 28,945,161.36 = 11,807,335.20 : x
  2. Step 2: Convert to fraction form
    20,974,357.92/28,945,161.36 = 11,807,335.20/x
  3. Step 3: Cross multiply
    20,974,357.92x = 28,945,161.36 × 11,807,335.20
  4. Step 4: Simplify right side
    20,974,357.92x = 341,765,222,595,607.81
  5. Step 5: Solve for x
    x = 341,765,222,595,607.81/20,974,357.92
  6. Step 6: Final answer
    x = 16,294,430.75

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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.