Home / 160,405,071.12-221,353,270.78-90,788,957.33

Finding the Fourth Proportional to 160,405,071.12, 221,353,270.78 and 90,788,957.33

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Solution

The fourth proportional to 160,405,071.12, 221,353,270.78 and 90,788,957.33 is: 125,285,519.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,405,071.12 : 221,353,270.78 = 90,788,957.33 : x
  2. Step 2: Convert to fraction form
    160,405,071.12/221,353,270.78 = 90,788,957.33/x
  3. Step 3: Cross multiply
    160,405,071.12x = 221,353,270.78 × 90,788,957.33
  4. Step 4: Simplify right side
    160,405,071.12x = 20,096,432,654,538,300
  5. Step 5: Solve for x
    x = 20,096,432,654,538,300/160,405,071.12
  6. Step 6: Final answer
    x = 125,285,519.43

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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.