Home / 82,509,418.88-113,856,322.56-47,704,342.40

Finding the Fourth Proportional to 82,509,418.88, 113,856,322.56 and 47,704,342.40

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Solution

The fourth proportional to 82,509,418.88, 113,856,322.56 and 47,704,342.40 is: 65,828,132.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,509,418.88 : 113,856,322.56 = 47,704,342.40 : x
  2. Step 2: Convert to fraction form
    82,509,418.88/113,856,322.56 = 47,704,342.40/x
  3. Step 3: Cross multiply
    82,509,418.88x = 113,856,322.56 × 47,704,342.40
  4. Step 4: Simplify right side
    82,509,418.88x = 5,431,440,995,807,084
  5. Step 5: Solve for x
    x = 5,431,440,995,807,084/82,509,418.88
  6. Step 6: Final answer
    x = 65,828,132.95

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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.