Home / 205,914,005.32-309,984,232.29-187,587,729.94

Finding the Fourth Proportional to 205,914,005.32, 309,984,232.29 and 187,587,729.94

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Solution

The fourth proportional to 205,914,005.32, 309,984,232.29 and 187,587,729.94 is: 282,395,742.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,914,005.32 : 309,984,232.29 = 187,587,729.94 : x
  2. Step 2: Convert to fraction form
    205,914,005.32/309,984,232.29 = 187,587,729.94/x
  3. Step 3: Cross multiply
    205,914,005.32x = 309,984,232.29 × 187,587,729.94
  4. Step 4: Simplify right side
    205,914,005.32x = 58,149,238,452,474,752
  5. Step 5: Solve for x
    x = 58,149,238,452,474,752/205,914,005.32
  6. Step 6: Final answer
    x = 282,395,742.64

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.