Home / 42,008,001.20-62,987,118.60-21,852,609.20

Finding the Fourth Proportional to 42,008,001.20, 62,987,118.60 and 21,852,609.20

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Solution

The fourth proportional to 42,008,001.20, 62,987,118.60 and 21,852,609.20 is: 32,765,969.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,008,001.20 : 62,987,118.60 = 21,852,609.20 : x
  2. Step 2: Convert to fraction form
    42,008,001.20/62,987,118.60 = 21,852,609.20/x
  3. Step 3: Cross multiply
    42,008,001.20x = 62,987,118.60 × 21,852,609.20
  4. Step 4: Simplify right side
    42,008,001.20x = 1,376,432,887,399,851
  5. Step 5: Solve for x
    x = 1,376,432,887,399,851/42,008,001.20
  6. Step 6: Final answer
    x = 32,765,969.53

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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.