Home / 263,801,112,297.63-393,925,227,655.84-215,437,819,901.85

Finding the Fourth Proportional to 263,801,112,297.63, 393,925,227,655.84 and 215,437,819,901.85

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Solution

The fourth proportional to 263,801,112,297.63, 393,925,227,655.84 and 215,437,819,901.85 is: 321,705,968,224.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,801,112,297.63 : 393,925,227,655.84 = 215,437,819,901.85 : x
  2. Step 2: Convert to fraction form
    263,801,112,297.63/393,925,227,655.84 = 215,437,819,901.85/x
  3. Step 3: Cross multiply
    263,801,112,297.63x = 393,925,227,655.84 × 215,437,819,901.85
  4. Step 4: Simplify right side
    263,801,112,297.63x = 84,866,392,250,514,122,211,328
  5. Step 5: Solve for x
    x = 84,866,392,250,514,122,211,328/263,801,112,297.63
  6. Step 6: Final answer
    x = 321,705,968,224.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.