Home / 15,047,531.68-20,765,588.56-8,172,015.52

Finding the Fourth Proportional to 15,047,531.68, 20,765,588.56 and 8,172,015.52

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Solution

The fourth proportional to 15,047,531.68, 20,765,588.56 and 8,172,015.52 is: 11,277,378.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,047,531.68 : 20,765,588.56 = 8,172,015.52 : x
  2. Step 2: Convert to fraction form
    15,047,531.68/20,765,588.56 = 8,172,015.52/x
  3. Step 3: Cross multiply
    15,047,531.68x = 20,765,588.56 × 8,172,015.52
  4. Step 4: Simplify right side
    15,047,531.68x = 169,696,711,994,254.44
  5. Step 5: Solve for x
    x = 169,696,711,994,254.44/15,047,531.68
  6. Step 6: Final answer
    x = 11,277,378.62

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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.