Home / 165,988,988.70-249,142,915.35-84,200,218.80

Finding the Fourth Proportional to 165,988,988.70, 249,142,915.35 and 84,200,218.80

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Solution

The fourth proportional to 165,988,988.70, 249,142,915.35 and 84,200,218.80 is: 126,381,202.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,988,988.70 : 249,142,915.35 = 84,200,218.80 : x
  2. Step 2: Convert to fraction form
    165,988,988.70/249,142,915.35 = 84,200,218.80/x
  3. Step 3: Cross multiply
    165,988,988.70x = 249,142,915.35 × 84,200,218.80
  4. Step 4: Simplify right side
    165,988,988.70x = 20,977,887,984,939,876
  5. Step 5: Solve for x
    x = 20,977,887,984,939,876/165,988,988.70
  6. Step 6: Final answer
    x = 126,381,202.45

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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.