Home / 159,644,401.20-239,466,601.80-121,380,649.20

Finding the Fourth Proportional to 159,644,401.20, 239,466,601.80 and 121,380,649.20

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Solution

The fourth proportional to 159,644,401.20, 239,466,601.80 and 121,380,649.20 is: 182,070,973.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,644,401.20 : 239,466,601.80 = 121,380,649.20 : x
  2. Step 2: Convert to fraction form
    159,644,401.20/239,466,601.80 = 121,380,649.20/x
  3. Step 3: Cross multiply
    159,644,401.20x = 239,466,601.80 × 121,380,649.20
  4. Step 4: Simplify right side
    159,644,401.20x = 29,066,611,588,201,892
  5. Step 5: Solve for x
    x = 29,066,611,588,201,892/159,644,401.20
  6. Step 6: Final answer
    x = 182,070,973.80

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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.