Home / 21,851,480.56-30,154,895.76-11,928,323.20

Finding the Fourth Proportional to 21,851,480.56, 30,154,895.76 and 11,928,323.20

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Solution

The fourth proportional to 21,851,480.56, 30,154,895.76 and 11,928,323.20 is: 16,461,005.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,851,480.56 : 30,154,895.76 = 11,928,323.20 : x
  2. Step 2: Convert to fraction form
    21,851,480.56/30,154,895.76 = 11,928,323.20/x
  3. Step 3: Cross multiply
    21,851,480.56x = 30,154,895.76 × 11,928,323.20
  4. Step 4: Simplify right side
    21,851,480.56x = 359,697,342,687,589.62
  5. Step 5: Solve for x
    x = 359,697,342,687,589.62/21,851,480.56
  6. Step 6: Final answer
    x = 16,461,005.55

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1.5x scale

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.