Home / 209,011,553.18-288,010,569.75-161,681,086.70

Finding the Fourth Proportional to 209,011,553.18, 288,010,569.75 and 161,681,086.70

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Solution

The fourth proportional to 209,011,553.18, 288,010,569.75 and 161,681,086.70 is: 222,790,851.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,011,553.18 : 288,010,569.75 = 161,681,086.70 : x
  2. Step 2: Convert to fraction form
    209,011,553.18/288,010,569.75 = 161,681,086.70/x
  3. Step 3: Cross multiply
    209,011,553.18x = 288,010,569.75 × 161,681,086.70
  4. Step 4: Simplify right side
    209,011,553.18x = 46,565,861,898,266,144
  5. Step 5: Solve for x
    x = 46,565,861,898,266,144/209,011,553.18
  6. Step 6: Final answer
    x = 222,790,851.46

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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.