Home / 137,673,778.15-189,982,979.90-75,792,788.11

Finding the Fourth Proportional to 137,673,778.15, 189,982,979.90 and 75,792,788.11

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Solution

The fourth proportional to 137,673,778.15, 189,982,979.90 and 75,792,788.11 is: 104,590,285.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,673,778.15 : 189,982,979.90 = 75,792,788.11 : x
  2. Step 2: Convert to fraction form
    137,673,778.15/189,982,979.90 = 75,792,788.11/x
  3. Step 3: Cross multiply
    137,673,778.15x = 189,982,979.90 × 75,792,788.11
  4. Step 4: Simplify right side
    137,673,778.15x = 14,399,339,739,117,176
  5. Step 5: Solve for x
    x = 14,399,339,739,117,176/137,673,778.15
  6. Step 6: Final answer
    x = 104,590,285.33

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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.