Home / 209,885,818.29-289,643,435.33-115,799,960.49

Finding the Fourth Proportional to 209,885,818.29, 289,643,435.33 and 115,799,960.49

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Solution

The fourth proportional to 209,885,818.29, 289,643,435.33 and 115,799,960.49 is: 159,804,500.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,885,818.29 : 289,643,435.33 = 115,799,960.49 : x
  2. Step 2: Convert to fraction form
    209,885,818.29/289,643,435.33 = 115,799,960.49/x
  3. Step 3: Cross multiply
    209,885,818.29x = 289,643,435.33 × 115,799,960.49
  4. Step 4: Simplify right side
    209,885,818.29x = 33,540,698,367,401,868
  5. Step 5: Solve for x
    x = 33,540,698,367,401,868/209,885,818.29
  6. Step 6: Final answer
    x = 159,804,500.56

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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.