Home / 326,712,014.80-489,470,825.40-265,797,941.20

Finding the Fourth Proportional to 326,712,014.80, 489,470,825.40 and 265,797,941.20

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Solution

The fourth proportional to 326,712,014.80, 489,470,825.40 and 265,797,941.20 is: 398,211,059.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,712,014.80 : 489,470,825.40 = 265,797,941.20 : x
  2. Step 2: Convert to fraction form
    326,712,014.80/489,470,825.40 = 265,797,941.20/x
  3. Step 3: Cross multiply
    326,712,014.80x = 489,470,825.40 × 265,797,941.20
  4. Step 4: Simplify right side
    326,712,014.80x = 130,100,337,668,784,656
  5. Step 5: Solve for x
    x = 130,100,337,668,784,656/326,712,014.80
  6. Step 6: Final answer
    x = 398,211,059.82

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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.