Home / 20,867,999.20-31,301,998.80-11,302,061.20

Finding the Fourth Proportional to 20,867,999.20, 31,301,998.80 and 11,302,061.20

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Solution

The fourth proportional to 20,867,999.20, 31,301,998.80 and 11,302,061.20 is: 16,953,091.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,867,999.20 : 31,301,998.80 = 11,302,061.20 : x
  2. Step 2: Convert to fraction form
    20,867,999.20/31,301,998.80 = 11,302,061.20/x
  3. Step 3: Cross multiply
    20,867,999.20x = 31,301,998.80 × 11,302,061.20
  4. Step 4: Simplify right side
    20,867,999.20x = 353,777,106,119,926.56
  5. Step 5: Solve for x
    x = 353,777,106,119,926.56/20,867,999.20
  6. Step 6: Final answer
    x = 16,953,091.80

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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.