Home / 284,336,538-426,521,340.96-79,880,556.48

Finding the Fourth Proportional to 284,336,538, 426,521,340.96 and 79,880,556.48

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Solution

The fourth proportional to 284,336,538, 426,521,340.96 and 79,880,556.48 is: 119,825,479.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,336,538 : 426,521,340.96 = 79,880,556.48 : x
  2. Step 2: Convert to fraction form
    284,336,538/426,521,340.96 = 79,880,556.48/x
  3. Step 3: Cross multiply
    284,336,538x = 426,521,340.96 × 79,880,556.48
  4. Step 4: Simplify right side
    284,336,538x = 34,070,762,066,480,616
  5. Step 5: Solve for x
    x = 34,070,762,066,480,616/284,336,538
  6. Step 6: Final answer
    x = 119,825,479.72

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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.