Home / 329,030,216.79-490,603,707.38-319,990,405.11

Finding the Fourth Proportional to 329,030,216.79, 490,603,707.38 and 319,990,405.11

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Solution

The fourth proportional to 329,030,216.79, 490,603,707.38 and 319,990,405.11 is: 477,124,808.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,030,216.79 : 490,603,707.38 = 319,990,405.11 : x
  2. Step 2: Convert to fraction form
    329,030,216.79/490,603,707.38 = 319,990,405.11/x
  3. Step 3: Cross multiply
    329,030,216.79x = 490,603,707.38 × 319,990,405.11
  4. Step 4: Simplify right side
    329,030,216.79x = 156,988,479,071,394,144
  5. Step 5: Solve for x
    x = 156,988,479,071,394,144/329,030,216.79
  6. Step 6: Final answer
    x = 477,124,808.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.