Home / 199,597,965.40-299,396,948.10-130,723,211.80

Finding the Fourth Proportional to 199,597,965.40, 299,396,948.10 and 130,723,211.80

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Solution

The fourth proportional to 199,597,965.40, 299,396,948.10 and 130,723,211.80 is: 196,084,817.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,597,965.40 : 299,396,948.10 = 130,723,211.80 : x
  2. Step 2: Convert to fraction form
    199,597,965.40/299,396,948.10 = 130,723,211.80/x
  3. Step 3: Cross multiply
    199,597,965.40x = 299,396,948.10 × 130,723,211.80
  4. Step 4: Simplify right side
    199,597,965.40x = 39,138,130,658,749,912
  5. Step 5: Solve for x
    x = 39,138,130,658,749,912/199,597,965.40
  6. Step 6: Final answer
    x = 196,084,817.70

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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.