Home / 128,771,145.45-193,090,362.98-47,950,511.85

Finding the Fourth Proportional to 128,771,145.45, 193,090,362.98 and 47,950,511.85

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Solution

The fourth proportional to 128,771,145.45, 193,090,362.98 and 47,950,511.85 is: 71,901,059.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,771,145.45 : 193,090,362.98 = 47,950,511.85 : x
  2. Step 2: Convert to fraction form
    128,771,145.45/193,090,362.98 = 47,950,511.85/x
  3. Step 3: Cross multiply
    128,771,145.45x = 193,090,362.98 × 47,950,511.85
  4. Step 4: Simplify right side
    128,771,145.45x = 9,258,781,737,953,538
  5. Step 5: Solve for x
    x = 9,258,781,737,953,538/128,771,145.45
  6. Step 6: Final answer
    x = 71,901,059.09

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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.