Home / 708,645,515.20-1,062,968,272.80-326,439,563.20

Finding the Fourth Proportional to 708,645,515.20, 1,062,968,272.80 and 326,439,563.20

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Solution

The fourth proportional to 708,645,515.20, 1,062,968,272.80 and 326,439,563.20 is: 489,659,344.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,645,515.20 : 1,062,968,272.80 = 326,439,563.20 : x
  2. Step 2: Convert to fraction form
    708,645,515.20/1,062,968,272.80 = 326,439,563.20/x
  3. Step 3: Cross multiply
    708,645,515.20x = 1,062,968,272.80 × 326,439,563.20
  4. Step 4: Simplify right side
    708,645,515.20x = 346,994,898,668,290,432
  5. Step 5: Solve for x
    x = 346,994,898,668,290,432/708,645,515.20
  6. Step 6: Final answer
    x = 489,659,344.80

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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.