Home / 68,259,688.20-102,389,532.30-19,739,124.90

Finding the Fourth Proportional to 68,259,688.20, 102,389,532.30 and 19,739,124.90

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Solution

The fourth proportional to 68,259,688.20, 102,389,532.30 and 19,739,124.90 is: 29,608,687.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,259,688.20 : 102,389,532.30 = 19,739,124.90 : x
  2. Step 2: Convert to fraction form
    68,259,688.20/102,389,532.30 = 19,739,124.90/x
  3. Step 3: Cross multiply
    68,259,688.20x = 102,389,532.30 × 19,739,124.90
  4. Step 4: Simplify right side
    68,259,688.20x = 2,021,079,766,522,284
  5. Step 5: Solve for x
    x = 2,021,079,766,522,284/68,259,688.20
  6. Step 6: Final answer
    x = 29,608,687.35

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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.