Home / 64,995,556.92-89,641,569.42-57,138,269.64

Finding the Fourth Proportional to 64,995,556.92, 89,641,569.42 and 57,138,269.64

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Solution

The fourth proportional to 64,995,556.92, 89,641,569.42 and 57,138,269.64 is: 78,804,835.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,995,556.92 : 89,641,569.42 = 57,138,269.64 : x
  2. Step 2: Convert to fraction form
    64,995,556.92/89,641,569.42 = 57,138,269.64/x
  3. Step 3: Cross multiply
    64,995,556.92x = 89,641,569.42 × 57,138,269.64
  4. Step 4: Simplify right side
    64,995,556.92x = 5,121,964,164,472,739
  5. Step 5: Solve for x
    x = 5,121,964,164,472,739/64,995,556.92
  6. Step 6: Final answer
    x = 78,804,835.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.