Home / 208,066,757.32-287,128,533.54-115,245,272.80

Finding the Fourth Proportional to 208,066,757.32, 287,128,533.54 and 115,245,272.80

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Solution

The fourth proportional to 208,066,757.32, 287,128,533.54 and 115,245,272.80 is: 159,036,487.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,066,757.32 : 287,128,533.54 = 115,245,272.80 : x
  2. Step 2: Convert to fraction form
    208,066,757.32/287,128,533.54 = 115,245,272.80/x
  3. Step 3: Cross multiply
    208,066,757.32x = 287,128,533.54 × 115,245,272.80
  4. Step 4: Simplify right side
    208,066,757.32x = 33,090,206,176,481,252
  5. Step 5: Solve for x
    x = 33,090,206,176,481,252/208,066,757.32
  6. Step 6: Final answer
    x = 159,036,487.15

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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.