Home / 371,668,976.37-512,967,389.40-215,122,401

Finding the Fourth Proportional to 371,668,976.37, 512,967,389.40 and 215,122,401

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Solution

The fourth proportional to 371,668,976.37, 512,967,389.40 and 215,122,401 is: 296,906,073.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,668,976.37 : 512,967,389.40 = 215,122,401 : x
  2. Step 2: Convert to fraction form
    371,668,976.37/512,967,389.40 = 215,122,401/x
  3. Step 3: Cross multiply
    371,668,976.37x = 512,967,389.40 × 215,122,401
  4. Step 4: Simplify right side
    371,668,976.37x = 110,350,776,442,429,952
  5. Step 5: Solve for x
    x = 110,350,776,442,429,952/371,668,976.37
  6. Step 6: Final answer
    x = 296,906,073.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.