Home / 42,378,414.52-63,535,289.64-19,333,232.63

Finding the Fourth Proportional to 42,378,414.52, 63,535,289.64 and 19,333,232.63

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Solution

The fourth proportional to 42,378,414.52, 63,535,289.64 and 19,333,232.63 is: 28,985,098.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,378,414.52 : 63,535,289.64 = 19,333,232.63 : x
  2. Step 2: Convert to fraction form
    42,378,414.52/63,535,289.64 = 19,333,232.63/x
  3. Step 3: Cross multiply
    42,378,414.52x = 63,535,289.64 × 19,333,232.63
  4. Step 4: Simplify right side
    42,378,414.52x = 1,228,342,534,701,667.75
  5. Step 5: Solve for x
    x = 1,228,342,534,701,667.75/42,378,414.52
  6. Step 6: Final answer
    x = 28,985,098.87

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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.