Home / 199,323,243.40-298,984,865.10-187,230,008.20

Finding the Fourth Proportional to 199,323,243.40, 298,984,865.10 and 187,230,008.20

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Solution

The fourth proportional to 199,323,243.40, 298,984,865.10 and 187,230,008.20 is: 280,845,012.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,323,243.40 : 298,984,865.10 = 187,230,008.20 : x
  2. Step 2: Convert to fraction form
    199,323,243.40/298,984,865.10 = 187,230,008.20/x
  3. Step 3: Cross multiply
    199,323,243.40x = 298,984,865.10 × 187,230,008.20
  4. Step 4: Simplify right side
    199,323,243.40x = 55,978,938,744,348,896
  5. Step 5: Solve for x
    x = 55,978,938,744,348,896/199,323,243.40
  6. Step 6: Final answer
    x = 280,845,012.30

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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.