Home / 205,914,007.31-309,984,235.33-187,587,731.93

Finding the Fourth Proportional to 205,914,007.31, 309,984,235.33 and 187,587,731.93

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Solution

The fourth proportional to 205,914,007.31, 309,984,235.33 and 187,587,731.93 is: 282,395,745.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,914,007.31 : 309,984,235.33 = 187,587,731.93 : x
  2. Step 2: Convert to fraction form
    205,914,007.31/309,984,235.33 = 187,587,731.93/x
  3. Step 3: Cross multiply
    205,914,007.31x = 309,984,235.33 × 187,587,731.93
  4. Step 4: Simplify right side
    205,914,007.31x = 58,149,239,638,672,136
  5. Step 5: Solve for x
    x = 58,149,239,638,672,136/205,914,007.31
  6. Step 6: Final answer
    x = 282,395,745.67

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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.