Home / 216,866,889.16-325,304,221.74-78,790,556.68

Finding the Fourth Proportional to 216,866,889.16, 325,304,221.74 and 78,790,556.68

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Solution

The fourth proportional to 216,866,889.16, 325,304,221.74 and 78,790,556.68 is: 118,187,247.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,866,889.16 : 325,304,221.74 = 78,790,556.68 : x
  2. Step 2: Convert to fraction form
    216,866,889.16/325,304,221.74 = 78,790,556.68/x
  3. Step 3: Cross multiply
    216,866,889.16x = 325,304,221.74 × 78,790,556.68
  4. Step 4: Simplify right side
    216,866,889.16x = 25,630,900,721,248,760
  5. Step 5: Solve for x
    x = 25,630,900,721,248,760/216,866,889.16
  6. Step 6: Final answer
    x = 118,187,247.58

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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.