Home / 31,482,336.15-43,422,498.05-20,866,527.11

Finding the Fourth Proportional to 31,482,336.15, 43,422,498.05 and 20,866,527.11

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Solution

The fourth proportional to 31,482,336.15, 43,422,498.05 and 20,866,527.11 is: 28,780,479.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,482,336.15 : 43,422,498.05 = 20,866,527.11 : x
  2. Step 2: Convert to fraction form
    31,482,336.15/43,422,498.05 = 20,866,527.11/x
  3. Step 3: Cross multiply
    31,482,336.15x = 43,422,498.05 × 20,866,527.11
  4. Step 4: Simplify right side
    31,482,336.15x = 906,076,732,748,470.88
  5. Step 5: Solve for x
    x = 906,076,732,748,470.88/31,482,336.15
  6. Step 6: Final answer
    x = 28,780,479.58

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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.