Home / 326,612,579.40-489,918,869.10-188,863,072.20

Finding the Fourth Proportional to 326,612,579.40, 489,918,869.10 and 188,863,072.20

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Solution

The fourth proportional to 326,612,579.40, 489,918,869.10 and 188,863,072.20 is: 283,294,608.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,612,579.40 : 489,918,869.10 = 188,863,072.20 : x
  2. Step 2: Convert to fraction form
    326,612,579.40/489,918,869.10 = 188,863,072.20/x
  3. Step 3: Cross multiply
    326,612,579.40x = 489,918,869.10 × 188,863,072.20
  4. Step 4: Simplify right side
    326,612,579.40x = 92,527,582,746,975,648
  5. Step 5: Solve for x
    x = 92,527,582,746,975,648/326,612,579.40
  6. Step 6: Final answer
    x = 283,294,608.30

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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.