Home / 20,776,004.40-31,164,006.60-13,609,642.80

Finding the Fourth Proportional to 20,776,004.40, 31,164,006.60 and 13,609,642.80

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Solution

The fourth proportional to 20,776,004.40, 31,164,006.60 and 13,609,642.80 is: 20,414,464.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,004.40 : 31,164,006.60 = 13,609,642.80 : x
  2. Step 2: Convert to fraction form
    20,776,004.40/31,164,006.60 = 13,609,642.80/x
  3. Step 3: Cross multiply
    20,776,004.40x = 31,164,006.60 × 13,609,642.80
  4. Step 4: Simplify right side
    20,776,004.40x = 424,130,998,042,842.50
  5. Step 5: Solve for x
    x = 424,130,998,042,842.50/20,776,004.40
  6. Step 6: Final answer
    x = 20,414,464.20

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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.