Home / 208,012,497.75-287,066,270.32-115,193,005.61

Finding the Fourth Proportional to 208,012,497.75, 287,066,270.32 and 115,193,005.61

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Solution

The fourth proportional to 208,012,497.75, 287,066,270.32 and 115,193,005.61 is: 158,971,344.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,012,497.75 : 287,066,270.32 = 115,193,005.61 : x
  2. Step 2: Convert to fraction form
    208,012,497.75/287,066,270.32 = 115,193,005.61/x
  3. Step 3: Cross multiply
    208,012,497.75x = 287,066,270.32 × 115,193,005.61
  4. Step 4: Simplify right side
    208,012,497.75x = 33,068,026,485,690,224
  5. Step 5: Solve for x
    x = 33,068,026,485,690,224/208,012,497.75
  6. Step 6: Final answer
    x = 158,971,344.72

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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.