Home / 256,609,600.20-384,914,400.30-154,320,985.80

Finding the Fourth Proportional to 256,609,600.20, 384,914,400.30 and 154,320,985.80

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Solution

The fourth proportional to 256,609,600.20, 384,914,400.30 and 154,320,985.80 is: 231,481,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,609,600.20 : 384,914,400.30 = 154,320,985.80 : x
  2. Step 2: Convert to fraction form
    256,609,600.20/384,914,400.30 = 154,320,985.80/x
  3. Step 3: Cross multiply
    256,609,600.20x = 384,914,400.30 × 154,320,985.80
  4. Step 4: Simplify right side
    256,609,600.20x = 59,400,369,702,911,824
  5. Step 5: Solve for x
    x = 59,400,369,702,911,824/256,609,600.20
  6. Step 6: Final answer
    x = 231,481,478.70

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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.