Home / 115,183,329-172,838,766.30-69,011,733.48

Finding the Fourth Proportional to 115,183,329, 172,838,766.30 and 69,011,733.48

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Solution

The fourth proportional to 115,183,329, 172,838,766.30 and 69,011,733.48 is: 103,555,809.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,183,329 : 172,838,766.30 = 69,011,733.48 : x
  2. Step 2: Convert to fraction form
    115,183,329/172,838,766.30 = 69,011,733.48/x
  3. Step 3: Cross multiply
    115,183,329x = 172,838,766.30 × 69,011,733.48
  4. Step 4: Simplify right side
    115,183,329x = 11,927,902,874,907,608
  5. Step 5: Solve for x
    x = 11,927,902,874,907,608/115,183,329
  6. Step 6: Final answer
    x = 103,555,809.49

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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.