Home / 209,485,400.34-289,098,821.81-116,665,908.10

Finding the Fourth Proportional to 209,485,400.34, 289,098,821.81 and 116,665,908.10

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Solution

The fourth proportional to 209,485,400.34, 289,098,821.81 and 116,665,908.10 is: 161,003,948.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,485,400.34 : 289,098,821.81 = 116,665,908.10 : x
  2. Step 2: Convert to fraction form
    209,485,400.34/289,098,821.81 = 116,665,908.10/x
  3. Step 3: Cross multiply
    209,485,400.34x = 289,098,821.81 × 116,665,908.10
  4. Step 4: Simplify right side
    209,485,400.34x = 33,727,976,577,103,736
  5. Step 5: Solve for x
    x = 33,727,976,577,103,736/209,485,400.34
  6. Step 6: Final answer
    x = 161,003,948.35

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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.