Home / 81,825,975.68-112,919,732.16-45,156,540.80

Finding the Fourth Proportional to 81,825,975.68, 112,919,732.16 and 45,156,540.80

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Solution

The fourth proportional to 81,825,975.68, 112,919,732.16 and 45,156,540.80 is: 62,315,963.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,825,975.68 : 112,919,732.16 = 45,156,540.80 : x
  2. Step 2: Convert to fraction form
    81,825,975.68/112,919,732.16 = 45,156,540.80/x
  3. Step 3: Cross multiply
    81,825,975.68x = 112,919,732.16 × 45,156,540.80
  4. Step 4: Simplify right side
    81,825,975.68x = 5,099,064,492,408,112
  5. Step 5: Solve for x
    x = 5,099,064,492,408,112/81,825,975.68
  6. Step 6: Final answer
    x = 62,315,963.24

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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.