Home / 31,432,729.94-43,352,555.86-20,423,056.20

Finding the Fourth Proportional to 31,432,729.94, 43,352,555.86 and 20,423,056.20

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Solution

The fourth proportional to 31,432,729.94, 43,352,555.86 and 20,423,056.20 is: 28,167,826.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,432,729.94 : 43,352,555.86 = 20,423,056.20 : x
  2. Step 2: Convert to fraction form
    31,432,729.94/43,352,555.86 = 20,423,056.20/x
  3. Step 3: Cross multiply
    31,432,729.94x = 43,352,555.86 × 20,423,056.20
  4. Step 4: Simplify right side
    31,432,729.94x = 885,391,684,662,826.12
  5. Step 5: Solve for x
    x = 885,391,684,662,826.12/31,432,729.94
  6. Step 6: Final answer
    x = 28,167,826.54

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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.