Home / 20,685,440.30-31,028,160.45-13,510,986.80

Finding the Fourth Proportional to 20,685,440.30, 31,028,160.45 and 13,510,986.80

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Solution

The fourth proportional to 20,685,440.30, 31,028,160.45 and 13,510,986.80 is: 20,266,480.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,685,440.30 : 31,028,160.45 = 13,510,986.80 : x
  2. Step 2: Convert to fraction form
    20,685,440.30/31,028,160.45 = 13,510,986.80/x
  3. Step 3: Cross multiply
    20,685,440.30x = 31,028,160.45 × 13,510,986.80
  4. Step 4: Simplify right side
    20,685,440.30x = 419,221,066,268,232.06
  5. Step 5: Solve for x
    x = 419,221,066,268,232.06/20,685,440.30
  6. Step 6: Final answer
    x = 20,266,480.20

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1.5x scale

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.