Home / 206,012,592.90-309,018,889.35-190,228,795.20

Finding the Fourth Proportional to 206,012,592.90, 309,018,889.35 and 190,228,795.20

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Solution

The fourth proportional to 206,012,592.90, 309,018,889.35 and 190,228,795.20 is: 285,343,192.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,012,592.90 : 309,018,889.35 = 190,228,795.20 : x
  2. Step 2: Convert to fraction form
    206,012,592.90/309,018,889.35 = 190,228,795.20/x
  3. Step 3: Cross multiply
    206,012,592.90x = 309,018,889.35 × 190,228,795.20
  4. Step 4: Simplify right side
    206,012,592.90x = 58,784,291,015,092,608
  5. Step 5: Solve for x
    x = 58,784,291,015,092,608/206,012,592.90
  6. Step 6: Final answer
    x = 285,343,192.80

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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.