Home / 78,141,623.67-117,213,424.92-29,606,439.87

Finding the Fourth Proportional to 78,141,623.67, 117,213,424.92 and 29,606,439.87

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Solution

The fourth proportional to 78,141,623.67, 117,213,424.92 and 29,606,439.87 is: 44,410,034.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,141,623.67 : 117,213,424.92 = 29,606,439.87 : x
  2. Step 2: Convert to fraction form
    78,141,623.67/117,213,424.92 = 29,606,439.87/x
  3. Step 3: Cross multiply
    78,141,623.67x = 117,213,424.92 × 29,606,439.87
  4. Step 4: Simplify right side
    78,141,623.67x = 3,470,272,216,850,739.50
  5. Step 5: Solve for x
    x = 3,470,272,216,850,739.50/78,141,623.67
  6. Step 6: Final answer
    x = 44,410,034.68

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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.