Home / 208,209,587.35-287,329,233.63-115,396,073.90

Finding the Fourth Proportional to 208,209,587.35, 287,329,233.63 and 115,396,073.90

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Solution

The fourth proportional to 208,209,587.35, 287,329,233.63 and 115,396,073.90 is: 159,246,583.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,209,587.35 : 287,329,233.63 = 115,396,073.90 : x
  2. Step 2: Convert to fraction form
    208,209,587.35/287,329,233.63 = 115,396,073.90/x
  3. Step 3: Cross multiply
    208,209,587.35x = 287,329,233.63 × 115,396,073.90
  4. Step 4: Simplify right side
    208,209,587.35x = 33,156,665,477,597,848
  5. Step 5: Solve for x
    x = 33,156,665,477,597,848/208,209,587.35
  6. Step 6: Final answer
    x = 159,246,583.69

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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.