Home / 137,606,221.72-189,853,834.36-78,057,703.60

Finding the Fourth Proportional to 137,606,221.72, 189,853,834.36 and 78,057,703.60

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Solution

The fourth proportional to 137,606,221.72, 189,853,834.36 and 78,057,703.60 is: 107,695,379.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,606,221.72 : 189,853,834.36 = 78,057,703.60 : x
  2. Step 2: Convert to fraction form
    137,606,221.72/189,853,834.36 = 78,057,703.60/x
  3. Step 3: Cross multiply
    137,606,221.72x = 189,853,834.36 × 78,057,703.60
  4. Step 4: Simplify right side
    137,606,221.72x = 14,819,554,329,796,376
  5. Step 5: Solve for x
    x = 14,819,554,329,796,376/137,606,221.72
  6. Step 6: Final answer
    x = 107,695,379.94

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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.