Home / 20,313,343,911.36-28,029,876,233.76-11,279,873,795.52

Finding the Fourth Proportional to 20,313,343,911.36, 28,029,876,233.76 and 11,279,873,795.52

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Solution

The fourth proportional to 20,313,343,911.36, 28,029,876,233.76 and 11,279,873,795.52 is: 15,564,816,300.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,313,343,911.36 : 28,029,876,233.76 = 11,279,873,795.52 : x
  2. Step 2: Convert to fraction form
    20,313,343,911.36/28,029,876,233.76 = 11,279,873,795.52/x
  3. Step 3: Cross multiply
    20,313,343,911.36x = 28,029,876,233.76 × 11,279,873,795.52
  4. Step 4: Simplify right side
    20,313,343,911.36x = 316,173,466,420,858,257,408
  5. Step 5: Solve for x
    x = 316,173,466,420,858,257,408/20,313,343,911.36
  6. Step 6: Final answer
    x = 15,564,816,300.09

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1.5x scale

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.