Home / 209,464,881.94-289,050,853.49-115,377,003.43

Finding the Fourth Proportional to 209,464,881.94, 289,050,853.49 and 115,377,003.43

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Solution

The fourth proportional to 209,464,881.94, 289,050,853.49 and 115,377,003.43 is: 159,214,380.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,464,881.94 : 289,050,853.49 = 115,377,003.43 : x
  2. Step 2: Convert to fraction form
    209,464,881.94/289,050,853.49 = 115,377,003.43/x
  3. Step 3: Cross multiply
    209,464,881.94x = 289,050,853.49 × 115,377,003.43
  4. Step 4: Simplify right side
    209,464,881.94x = 33,349,821,313,692,156
  5. Step 5: Solve for x
    x = 33,349,821,313,692,156/209,464,881.94
  6. Step 6: Final answer
    x = 159,214,380.02

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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.