Home / 266,328,015.90-399,492,023.85-193,201,734.30

Finding the Fourth Proportional to 266,328,015.90, 399,492,023.85 and 193,201,734.30

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Solution

The fourth proportional to 266,328,015.90, 399,492,023.85 and 193,201,734.30 is: 289,802,601.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,328,015.90 : 399,492,023.85 = 193,201,734.30 : x
  2. Step 2: Convert to fraction form
    266,328,015.90/399,492,023.85 = 193,201,734.30/x
  3. Step 3: Cross multiply
    266,328,015.90x = 399,492,023.85 × 193,201,734.30
  4. Step 4: Simplify right side
    266,328,015.90x = 77,182,551,846,836,976
  5. Step 5: Solve for x
    x = 77,182,551,846,836,976/266,328,015.90
  6. Step 6: Final answer
    x = 289,802,601.45

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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.