Home / 31,386,713.25-43,331,422.74-20,383,303.89

Finding the Fourth Proportional to 31,386,713.25, 43,331,422.74 and 20,383,303.89

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Solution

The fourth proportional to 31,386,713.25, 43,331,422.74 and 20,383,303.89 is: 28,140,492.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,386,713.25 : 43,331,422.74 = 20,383,303.89 : x
  2. Step 2: Convert to fraction form
    31,386,713.25/43,331,422.74 = 20,383,303.89/x
  3. Step 3: Cross multiply
    31,386,713.25x = 43,331,422.74 × 20,383,303.89
  4. Step 4: Simplify right side
    31,386,713.25x = 883,237,557,695,476.50
  5. Step 5: Solve for x
    x = 883,237,557,695,476.50/31,386,713.25
  6. Step 6: Final answer
    x = 28,140,492.15

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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.