Home / 207,986,715.44-287,320,634.66-166,115,807.64

Finding the Fourth Proportional to 207,986,715.44, 287,320,634.66 and 166,115,807.64

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Solution

The fourth proportional to 207,986,715.44, 287,320,634.66 and 166,115,807.64 is: 229,478,595.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,986,715.44 : 287,320,634.66 = 166,115,807.64 : x
  2. Step 2: Convert to fraction form
    207,986,715.44/287,320,634.66 = 166,115,807.64/x
  3. Step 3: Cross multiply
    207,986,715.44x = 287,320,634.66 × 166,115,807.64
  4. Step 4: Simplify right side
    207,986,715.44x = 47,728,499,278,183,280
  5. Step 5: Solve for x
    x = 47,728,499,278,183,280/207,986,715.44
  6. Step 6: Final answer
    x = 229,478,595.19

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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.