Home / 20,535,208.96-28,338,922.56-11,242,622.20

Finding the Fourth Proportional to 20,535,208.96, 28,338,922.56 and 11,242,622.20

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Solution

The fourth proportional to 20,535,208.96, 28,338,922.56 and 11,242,622.20 is: 15,515,001.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535,208.96 : 28,338,922.56 = 11,242,622.20 : x
  2. Step 2: Convert to fraction form
    20,535,208.96/28,338,922.56 = 11,242,622.20/x
  3. Step 3: Cross multiply
    20,535,208.96x = 28,338,922.56 × 11,242,622.20
  4. Step 4: Simplify right side
    20,535,208.96x = 318,603,799,897,136.81
  5. Step 5: Solve for x
    x = 318,603,799,897,136.81/20,535,208.96
  6. Step 6: Final answer
    x = 15,515,001.60

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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.