Home / 260,760,385,926.30-391,140,578,889.45-253,413,745,542.30

Finding the Fourth Proportional to 260,760,385,926.30, 391,140,578,889.45 and 253,413,745,542.30

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Solution

The fourth proportional to 260,760,385,926.30, 391,140,578,889.45 and 253,413,745,542.30 is: 380,120,618,313.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,760,385,926.30 : 391,140,578,889.45 = 253,413,745,542.30 : x
  2. Step 2: Convert to fraction form
    260,760,385,926.30/391,140,578,889.45 = 253,413,745,542.30/x
  3. Step 3: Cross multiply
    260,760,385,926.30x = 391,140,578,889.45 × 253,413,745,542.30
  4. Step 4: Simplify right side
    260,760,385,926.30x = 99,120,399,129,958,997,295,104
  5. Step 5: Solve for x
    x = 99,120,399,129,958,997,295,104/260,760,385,926.30
  6. Step 6: Final answer
    x = 380,120,618,313.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.