Home / 84,564,672.40-126,858,818.40-36,042,140.80

Finding the Fourth Proportional to 84,564,672.40, 126,858,818.40 and 36,042,140.80

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Solution

The fourth proportional to 84,564,672.40, 126,858,818.40 and 36,042,140.80 is: 54,068,244.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,564,672.40 : 126,858,818.40 = 36,042,140.80 : x
  2. Step 2: Convert to fraction form
    84,564,672.40/126,858,818.40 = 36,042,140.80/x
  3. Step 3: Cross multiply
    84,564,672.40x = 126,858,818.40 × 36,042,140.80
  4. Step 4: Simplify right side
    84,564,672.40x = 4,572,263,394,494,431
  5. Step 5: Solve for x
    x = 4,572,263,394,494,431/84,564,672.40
  6. Step 6: Final answer
    x = 54,068,244.63

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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.