Home / 326,619,333.20-489,928,999.80-144,866,511.20

Finding the Fourth Proportional to 326,619,333.20, 489,928,999.80 and 144,866,511.20

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Solution

The fourth proportional to 326,619,333.20, 489,928,999.80 and 144,866,511.20 is: 217,299,766.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,619,333.20 : 489,928,999.80 = 144,866,511.20 : x
  2. Step 2: Convert to fraction form
    326,619,333.20/489,928,999.80 = 144,866,511.20/x
  3. Step 3: Cross multiply
    326,619,333.20x = 489,928,999.80 × 144,866,511.20
  4. Step 4: Simplify right side
    326,619,333.20x = 70,974,304,936,731,496
  5. Step 5: Solve for x
    x = 70,974,304,936,731,496/326,619,333.20
  6. Step 6: Final answer
    x = 217,299,766.80

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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.