Home / 42,123,196.92-63,208,110.40-20,557,977.24

Finding the Fourth Proportional to 42,123,196.92, 63,208,110.40 and 20,557,977.24

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Solution

The fourth proportional to 42,123,196.92, 63,208,110.40 and 20,557,977.24 is: 30,848,344.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,123,196.92 : 63,208,110.40 = 20,557,977.24 : x
  2. Step 2: Convert to fraction form
    42,123,196.92/63,208,110.40 = 20,557,977.24/x
  3. Step 3: Cross multiply
    42,123,196.92x = 63,208,110.40 × 20,557,977.24
  4. Step 4: Simplify right side
    42,123,196.92x = 1,299,430,894,986,607.25
  5. Step 5: Solve for x
    x = 1,299,430,894,986,607.25/42,123,196.92
  6. Step 6: Final answer
    x = 30,848,344.62

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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.