Home / 47,921,289.30-71,881,933.95-19,188,045.90

Finding the Fourth Proportional to 47,921,289.30, 71,881,933.95 and 19,188,045.90

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Solution

The fourth proportional to 47,921,289.30, 71,881,933.95 and 19,188,045.90 is: 28,782,068.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,921,289.30 : 71,881,933.95 = 19,188,045.90 : x
  2. Step 2: Convert to fraction form
    47,921,289.30/71,881,933.95 = 19,188,045.90/x
  3. Step 3: Cross multiply
    47,921,289.30x = 71,881,933.95 × 19,188,045.90
  4. Step 4: Simplify right side
    47,921,289.30x = 1,379,273,848,013,368.25
  5. Step 5: Solve for x
    x = 1,379,273,848,013,368.25/47,921,289.30
  6. Step 6: Final answer
    x = 28,782,068.85

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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.