Home / 20,718,642.20-31,077,963.30-16,435,621.40

Finding the Fourth Proportional to 20,718,642.20, 31,077,963.30 and 16,435,621.40

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Solution

The fourth proportional to 20,718,642.20, 31,077,963.30 and 16,435,621.40 is: 24,653,432.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718,642.20 : 31,077,963.30 = 16,435,621.40 : x
  2. Step 2: Convert to fraction form
    20,718,642.20/31,077,963.30 = 16,435,621.40/x
  3. Step 3: Cross multiply
    20,718,642.20x = 31,077,963.30 × 16,435,621.40
  4. Step 4: Simplify right side
    20,718,642.20x = 510,785,638,681,894.62
  5. Step 5: Solve for x
    x = 510,785,638,681,894.62/20,718,642.20
  6. Step 6: Final answer
    x = 24,653,432.10

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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.