Home / 208,179,715.32-287,289,718.74-115,361,773.24

Finding the Fourth Proportional to 208,179,715.32, 287,289,718.74 and 115,361,773.24

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Solution

The fourth proportional to 208,179,715.32, 287,289,718.74 and 115,361,773.24 is: 159,200,195.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,179,715.32 : 287,289,718.74 = 115,361,773.24 : x
  2. Step 2: Convert to fraction form
    208,179,715.32/287,289,718.74 = 115,361,773.24/x
  3. Step 3: Cross multiply
    208,179,715.32x = 287,289,718.74 × 115,361,773.24
  4. Step 4: Simplify right side
    208,179,715.32x = 33,142,251,387,467,260
  5. Step 5: Solve for x
    x = 33,142,251,387,467,260/208,179,715.32
  6. Step 6: Final answer
    x = 159,200,195.55

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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.