Home / 137,108,667.92-189,210,321.08-74,384,762.66

Finding the Fourth Proportional to 137,108,667.92, 189,210,321.08 and 74,384,762.66

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Solution

The fourth proportional to 137,108,667.92, 189,210,321.08 and 74,384,762.66 is: 102,651,167.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,108,667.92 : 189,210,321.08 = 74,384,762.66 : x
  2. Step 2: Convert to fraction form
    137,108,667.92/189,210,321.08 = 74,384,762.66/x
  3. Step 3: Cross multiply
    137,108,667.92x = 189,210,321.08 × 74,384,762.66
  4. Step 4: Simplify right side
    137,108,667.92x = 14,074,364,825,040,218
  5. Step 5: Solve for x
    x = 14,074,364,825,040,218/137,108,667.92
  6. Step 6: Final answer
    x = 102,651,167.42

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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.