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Finding the Fourth Proportional to 276,804,539.65, 415,206,809.48 and 161,729,848.45

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Solution

The fourth proportional to 276,804,539.65, 415,206,809.48 and 161,729,848.45 is: 242,594,772.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,804,539.65 : 415,206,809.48 = 161,729,848.45 : x
  2. Step 2: Convert to fraction form
    276,804,539.65/415,206,809.48 = 161,729,848.45/x
  3. Step 3: Cross multiply
    276,804,539.65x = 415,206,809.48 × 161,729,848.45
  4. Step 4: Simplify right side
    276,804,539.65x = 67,151,334,372,608,424
  5. Step 5: Solve for x
    x = 67,151,334,372,608,424/276,804,539.65
  6. Step 6: Final answer
    x = 242,594,772.68

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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.