Home / 137,108,253.72-189,212,871.87-75,228,575.88

Finding the Fourth Proportional to 137,108,253.72, 189,212,871.87 and 75,228,575.88

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Solution

The fourth proportional to 137,108,253.72, 189,212,871.87 and 75,228,575.88 is: 103,817,345.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,108,253.72 : 189,212,871.87 = 75,228,575.88 : x
  2. Step 2: Convert to fraction form
    137,108,253.72/189,212,871.87 = 75,228,575.88/x
  3. Step 3: Cross multiply
    137,108,253.72x = 189,212,871.87 × 75,228,575.88
  4. Step 4: Simplify right side
    137,108,253.72x = 14,234,214,888,945,012
  5. Step 5: Solve for x
    x = 14,234,214,888,945,012/137,108,253.72
  6. Step 6: Final answer
    x = 103,817,345.07

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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.