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Finding the Third Proportional to 28,439,976.38 and 42,958,848.38

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Solution

The third proportional to 28,439,976.38 and 42,958,848.38 is: 64,889,739.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,439,976.38 : 42,958,848.38 = 42,958,848.38 : x
  2. Step 2: Convert to fraction form
    28,439,976.38/42,958,848.38 = 42,958,848.38/x
  3. Step 3: Cross multiply
    28,439,976.38x = 42,958,848.38 × 42,958,848.38
  4. Step 4: Simplify right side
    28,439,976.38x = 1,845,462,653,706,240.25
  5. Step 5: Solve for x
    x = 1,845,462,653,706,240.25/28,439,976.38
  6. Step 6: Final answer
    x = 64,889,739.34

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.