Home / 385,526,110,805.22-532,018,875,588.78-211,907,538,679.42

Finding the Fourth Proportional to 385,526,110,805.22, 532,018,875,588.78 and 211,907,538,679.42

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Solution

The fourth proportional to 385,526,110,805.22, 532,018,875,588.78 and 211,907,538,679.42 is: 292,428,469,297.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,526,110,805.22 : 532,018,875,588.78 = 211,907,538,679.42 : x
  2. Step 2: Convert to fraction form
    385,526,110,805.22/532,018,875,588.78 = 211,907,538,679.42/x
  3. Step 3: Cross multiply
    385,526,110,805.22x = 532,018,875,588.78 × 211,907,538,679.42
  4. Step 4: Simplify right side
    385,526,110,805.22x = 112,738,810,457,010,955,354,112
  5. Step 5: Solve for x
    x = 112,738,810,457,010,955,354,112/385,526,110,805.22
  6. Step 6: Final answer
    x = 292,428,469,297.56

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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.