Home / 20,775,010.90-31,164,287.55-5,424,337.30

Finding the Fourth Proportional to 20,775,010.90, 31,164,287.55 and 5,424,337.30

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Solution

The fourth proportional to 20,775,010.90, 31,164,287.55 and 5,424,337.30 is: 8,136,968.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,775,010.90 : 31,164,287.55 = 5,424,337.30 : x
  2. Step 2: Convert to fraction form
    20,775,010.90/31,164,287.55 = 5,424,337.30/x
  3. Step 3: Cross multiply
    20,775,010.90x = 31,164,287.55 × 5,424,337.30
  4. Step 4: Simplify right side
    20,775,010.90x = 169,045,607,385,390.62
  5. Step 5: Solve for x
    x = 169,045,607,385,390.62/20,775,010.90
  6. Step 6: Final answer
    x = 8,136,968.41

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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.