Home / 780,055,920.90-1,170,083,881.35-262,314,288.90

Finding the Fourth Proportional to 780,055,920.90, 1,170,083,881.35 and 262,314,288.90

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Solution

The fourth proportional to 780,055,920.90, 1,170,083,881.35 and 262,314,288.90 is: 393,471,433.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,055,920.90 : 1,170,083,881.35 = 262,314,288.90 : x
  2. Step 2: Convert to fraction form
    780,055,920.90/1,170,083,881.35 = 262,314,288.90/x
  3. Step 3: Cross multiply
    780,055,920.90x = 1,170,083,881.35 × 262,314,288.90
  4. Step 4: Simplify right side
    780,055,920.90x = 306,929,721,289,677,184
  5. Step 5: Solve for x
    x = 306,929,721,289,677,184/780,055,920.90
  6. Step 6: Final answer
    x = 393,471,433.35

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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.