Home / 208,209,581.41-287,329,225.44-115,396,067.96

Finding the Fourth Proportional to 208,209,581.41, 287,329,225.44 and 115,396,067.96

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Solution

The fourth proportional to 208,209,581.41, 287,329,225.44 and 115,396,067.96 is: 159,246,575.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,209,581.41 : 287,329,225.44 = 115,396,067.96 : x
  2. Step 2: Convert to fraction form
    208,209,581.41/287,329,225.44 = 115,396,067.96/x
  3. Step 3: Cross multiply
    208,209,581.41x = 287,329,225.44 × 115,396,067.96
  4. Step 4: Simplify right side
    208,209,581.41x = 33,156,662,826,811,112
  5. Step 5: Solve for x
    x = 33,156,662,826,811,112/208,209,581.41
  6. Step 6: Final answer
    x = 159,246,575.51

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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.