Home / 877,131,618.35-1,315,685,029.25-213,150,518.48

Finding the Fourth Proportional to 877,131,618.35, 1,315,685,029.25 and 213,150,518.48

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Solution

The fourth proportional to 877,131,618.35, 1,315,685,029.25 and 213,150,518.48 is: 319,722,764.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,131,618.35 : 1,315,685,029.25 = 213,150,518.48 : x
  2. Step 2: Convert to fraction form
    877,131,618.35/1,315,685,029.25 = 213,150,518.48/x
  3. Step 3: Cross multiply
    877,131,618.35x = 1,315,685,029.25 × 213,150,518.48
  4. Step 4: Simplify right side
    877,131,618.35x = 280,438,946,144,833,536
  5. Step 5: Solve for x
    x = 280,438,946,144,833,536/877,131,618.35
  6. Step 6: Final answer
    x = 319,722,764.84

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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.