Home / 42,109,871.45-63,166,757.96-12,965,015.88

Finding the Fourth Proportional to 42,109,871.45, 63,166,757.96 and 12,965,015.88

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Solution

The fourth proportional to 42,109,871.45, 63,166,757.96 and 12,965,015.88 is: 19,448,124.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,109,871.45 : 63,166,757.96 = 12,965,015.88 : x
  2. Step 2: Convert to fraction form
    42,109,871.45/63,166,757.96 = 12,965,015.88/x
  3. Step 3: Cross multiply
    42,109,871.45x = 63,166,757.96 × 12,965,015.88
  4. Step 4: Simplify right side
    42,109,871.45x = 818,958,020,071,929
  5. Step 5: Solve for x
    x = 818,958,020,071,929/42,109,871.45
  6. Step 6: Final answer
    x = 19,448,124.44

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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.