Home / 69,413,806.83-104,099,747.45-20,878,776.39

Finding the Fourth Proportional to 69,413,806.83, 104,099,747.45 and 20,878,776.39

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Solution

The fourth proportional to 69,413,806.83, 104,099,747.45 and 20,878,776.39 is: 31,311,859.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,413,806.83 : 104,099,747.45 = 20,878,776.39 : x
  2. Step 2: Convert to fraction form
    69,413,806.83/104,099,747.45 = 20,878,776.39/x
  3. Step 3: Cross multiply
    69,413,806.83x = 104,099,747.45 × 20,878,776.39
  4. Step 4: Simplify right side
    69,413,806.83x = 2,173,475,349,159,628.75
  5. Step 5: Solve for x
    x = 2,173,475,349,159,628.75/69,413,806.83
  6. Step 6: Final answer
    x = 31,311,859.25

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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.