Home / 30,588,847.92-42,213,539.86-21,663,947.30

Finding the Fourth Proportional to 30,588,847.92, 42,213,539.86 and 21,663,947.30

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Solution

The fourth proportional to 30,588,847.92, 42,213,539.86 and 21,663,947.30 is: 29,896,905.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,588,847.92 : 42,213,539.86 = 21,663,947.30 : x
  2. Step 2: Convert to fraction form
    30,588,847.92/42,213,539.86 = 21,663,947.30/x
  3. Step 3: Cross multiply
    30,588,847.92x = 42,213,539.86 × 21,663,947.30
  4. Step 4: Simplify right side
    30,588,847.92x = 914,511,902,873,489.38
  5. Step 5: Solve for x
    x = 914,511,902,873,489.38/30,588,847.92
  6. Step 6: Final answer
    x = 29,896,905.74

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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.