Home / 86,211,463.94-129,334,231.44-31,624,556.30

Finding the Fourth Proportional to 86,211,463.94, 129,334,231.44 and 31,624,556.30

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Solution

The fourth proportional to 86,211,463.94, 129,334,231.44 and 31,624,556.30 is: 47,443,083.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,211,463.94 : 129,334,231.44 = 31,624,556.30 : x
  2. Step 2: Convert to fraction form
    86,211,463.94/129,334,231.44 = 31,624,556.30/x
  3. Step 3: Cross multiply
    86,211,463.94x = 129,334,231.44 × 31,624,556.30
  4. Step 4: Simplify right side
    86,211,463.94x = 4,090,137,683,691,510
  5. Step 5: Solve for x
    x = 4,090,137,683,691,510/86,211,463.94
  6. Step 6: Final answer
    x = 47,443,083.52

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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.