Home / 55,156,631.69-76,115,223.09-30,379,125.89

Finding the Fourth Proportional to 55,156,631.69, 76,115,223.09 and 30,379,125.89

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Solution

The fourth proportional to 55,156,631.69, 76,115,223.09 and 30,379,125.89 is: 41,922,682.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,156,631.69 : 76,115,223.09 = 30,379,125.89 : x
  2. Step 2: Convert to fraction form
    55,156,631.69/76,115,223.09 = 30,379,125.89/x
  3. Step 3: Cross multiply
    55,156,631.69x = 76,115,223.09 × 30,379,125.89
  4. Step 4: Simplify right side
    55,156,631.69x = 2,312,313,944,396,545
  5. Step 5: Solve for x
    x = 2,312,313,944,396,545/55,156,631.69
  6. Step 6: Final answer
    x = 41,922,682.25

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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.