Home / 77,201,213.89-115,805,545.22-25,384,669.36

Finding the Fourth Proportional to 77,201,213.89, 115,805,545.22 and 25,384,669.36

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Solution

The fourth proportional to 77,201,213.89, 115,805,545.22 and 25,384,669.36 is: 38,078,228.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,201,213.89 : 115,805,545.22 = 25,384,669.36 : x
  2. Step 2: Convert to fraction form
    77,201,213.89/115,805,545.22 = 25,384,669.36/x
  3. Step 3: Cross multiply
    77,201,213.89x = 115,805,545.22 × 25,384,669.36
  4. Step 4: Simplify right side
    77,201,213.89x = 2,939,685,475,464,228.50
  5. Step 5: Solve for x
    x = 2,939,685,475,464,228.50/77,201,213.89
  6. Step 6: Final answer
    x = 38,078,228.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.