Home / 209,011,549.68-288,010,564.92-161,681,083.20

Finding the Fourth Proportional to 209,011,549.68, 288,010,564.92 and 161,681,083.20

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Solution

The fourth proportional to 209,011,549.68, 288,010,564.92 and 161,681,083.20 is: 222,790,846.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,011,549.68 : 288,010,564.92 = 161,681,083.20 : x
  2. Step 2: Convert to fraction form
    209,011,549.68/288,010,564.92 = 161,681,083.20/x
  3. Step 3: Cross multiply
    209,011,549.68x = 288,010,564.92 × 161,681,083.20
  4. Step 4: Simplify right side
    209,011,549.68x = 46,565,860,109,309,520
  5. Step 5: Solve for x
    x = 46,565,860,109,309,520/209,011,549.68
  6. Step 6: Final answer
    x = 222,790,846.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.