Home / 326,712,011.80-489,470,820.90-265,797,938.20

Finding the Fourth Proportional to 326,712,011.80, 489,470,820.90 and 265,797,938.20

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Solution

The fourth proportional to 326,712,011.80, 489,470,820.90 and 265,797,938.20 is: 398,211,055.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,712,011.80 : 489,470,820.90 = 265,797,938.20 : x
  2. Step 2: Convert to fraction form
    326,712,011.80/489,470,820.90 = 265,797,938.20/x
  3. Step 3: Cross multiply
    326,712,011.80x = 489,470,820.90 × 265,797,938.20
  4. Step 4: Simplify right side
    326,712,011.80x = 130,100,335,004,281,456
  5. Step 5: Solve for x
    x = 130,100,335,004,281,456/326,712,011.80
  6. Step 6: Final answer
    x = 398,211,055.32

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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.