Home / 20,308,114.65-28,025,032.33-11,015,661.45

Finding the Fourth Proportional to 20,308,114.65, 28,025,032.33 and 11,015,661.45

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Solution

The fourth proportional to 20,308,114.65, 28,025,032.33 and 11,015,661.45 is: 15,201,522.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,308,114.65 : 28,025,032.33 = 11,015,661.45 : x
  2. Step 2: Convert to fraction form
    20,308,114.65/28,025,032.33 = 11,015,661.45/x
  3. Step 3: Cross multiply
    20,308,114.65x = 28,025,032.33 × 11,015,661.45
  4. Step 4: Simplify right side
    20,308,114.65x = 308,714,268,272,584.62
  5. Step 5: Solve for x
    x = 308,714,268,272,584.62/20,308,114.65
  6. Step 6: Final answer
    x = 15,201,522.82

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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.