Home / 84,495,939.40-126,743,909.10-20,670,531.40

Finding the Fourth Proportional to 84,495,939.40, 126,743,909.10 and 20,670,531.40

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Solution

The fourth proportional to 84,495,939.40, 126,743,909.10 and 20,670,531.40 is: 31,005,797.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,495,939.40 : 126,743,909.10 = 20,670,531.40 : x
  2. Step 2: Convert to fraction form
    84,495,939.40/126,743,909.10 = 20,670,531.40/x
  3. Step 3: Cross multiply
    84,495,939.40x = 126,743,909.10 × 20,670,531.40
  4. Step 4: Simplify right side
    84,495,939.40x = 2,619,863,952,810,295.50
  5. Step 5: Solve for x
    x = 2,619,863,952,810,295.50/84,495,939.40
  6. Step 6: Final answer
    x = 31,005,797.10

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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.