Home / 137,515,789.52-189,775,379.04-75,637,751.84

Finding the Fourth Proportional to 137,515,789.52, 189,775,379.04 and 75,637,751.84

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Solution

The fourth proportional to 137,515,789.52, 189,775,379.04 and 75,637,751.84 is: 104,382,071.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,515,789.52 : 189,775,379.04 = 75,637,751.84 : x
  2. Step 2: Convert to fraction form
    137,515,789.52/189,775,379.04 = 75,637,751.84/x
  3. Step 3: Cross multiply
    137,515,789.52x = 189,775,379.04 × 75,637,751.84
  4. Step 4: Simplify right side
    137,515,789.52x = 14,354,183,025,169,458
  5. Step 5: Solve for x
    x = 14,354,183,025,169,458/137,515,789.52
  6. Step 6: Final answer
    x = 104,382,071.87

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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.