Home / 228,587,139-315,456,120.30-124,171,185.96

Finding the Fourth Proportional to 228,587,139, 315,456,120.30 and 124,171,185.96

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Solution

The fourth proportional to 228,587,139, 315,456,120.30 and 124,171,185.96 is: 171,359,424.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,587,139 : 315,456,120.30 = 124,171,185.96 : x
  2. Step 2: Convert to fraction form
    228,587,139/315,456,120.30 = 124,171,185.96/x
  3. Step 3: Cross multiply
    228,587,139x = 315,456,120.30 × 124,171,185.96
  4. Step 4: Simplify right side
    228,587,139x = 39,170,560,575,991,432
  5. Step 5: Solve for x
    x = 39,170,560,575,991,432/228,587,139
  6. Step 6: Final answer
    x = 171,359,424.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.