Home / 20,724,919.20-31,064,569.20-7,254,813.60

Finding the Fourth Proportional to 20,724,919.20, 31,064,569.20 and 7,254,813.60

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Solution

The fourth proportional to 20,724,919.20, 31,064,569.20 and 7,254,813.60 is: 10,874,235.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724,919.20 : 31,064,569.20 = 7,254,813.60 : x
  2. Step 2: Convert to fraction form
    20,724,919.20/31,064,569.20 = 7,254,813.60/x
  3. Step 3: Cross multiply
    20,724,919.20x = 31,064,569.20 × 7,254,813.60
  4. Step 4: Simplify right side
    20,724,919.20x = 225,367,659,110,301.09
  5. Step 5: Solve for x
    x = 225,367,659,110,301.09/20,724,919.20
  6. Step 6: Final answer
    x = 10,874,235.84

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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.