Home / 27,155,965.60-40,733,948.40-7,988,660.20

Finding the Fourth Proportional to 27,155,965.60, 40,733,948.40 and 7,988,660.20

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Solution

The fourth proportional to 27,155,965.60, 40,733,948.40 and 7,988,660.20 is: 11,982,990.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,155,965.60 : 40,733,948.40 = 7,988,660.20 : x
  2. Step 2: Convert to fraction form
    27,155,965.60/40,733,948.40 = 7,988,660.20/x
  3. Step 3: Cross multiply
    27,155,965.60x = 40,733,948.40 × 7,988,660.20
  4. Step 4: Simplify right side
    27,155,965.60x = 325,409,672,371,933.69
  5. Step 5: Solve for x
    x = 325,409,672,371,933.69/27,155,965.60
  6. Step 6: Final answer
    x = 11,982,990.30

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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.