Home / 287,800,403.04-431,508,848.40-158,468,921.28

Finding the Fourth Proportional to 287,800,403.04, 431,508,848.40 and 158,468,921.28

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Solution

The fourth proportional to 287,800,403.04, 431,508,848.40 and 158,468,921.28 is: 237,597,796.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,800,403.04 : 431,508,848.40 = 158,468,921.28 : x
  2. Step 2: Convert to fraction form
    287,800,403.04/431,508,848.40 = 158,468,921.28/x
  3. Step 3: Cross multiply
    287,800,403.04x = 431,508,848.40 × 158,468,921.28
  4. Step 4: Simplify right side
    287,800,403.04x = 68,380,741,728,723,048
  5. Step 5: Solve for x
    x = 68,380,741,728,723,048/287,800,403.04
  6. Step 6: Final answer
    x = 237,597,796.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.