Home / 15,011,372,347.74-20,715,299,426.97-8,237,170,115.82

Finding the Fourth Proportional to 15,011,372,347.74, 20,715,299,426.97 and 8,237,170,115.82

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Solution

The fourth proportional to 15,011,372,347.74, 20,715,299,426.97 and 8,237,170,115.82 is: 11,367,078,334.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,011,372,347.74 : 20,715,299,426.97 = 8,237,170,115.82 : x
  2. Step 2: Convert to fraction form
    15,011,372,347.74/20,715,299,426.97 = 8,237,170,115.82/x
  3. Step 3: Cross multiply
    15,011,372,347.74x = 20,715,299,426.97 × 8,237,170,115.82
  4. Step 4: Simplify right side
    15,011,372,347.74x = 170,635,445,380,100,456,448
  5. Step 5: Solve for x
    x = 170,635,445,380,100,456,448/15,011,372,347.74
  6. Step 6: Final answer
    x = 11,367,078,334.17

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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.