Home / 260,760,385,984.80-391,140,578,977.20-253,413,745,600.80

Finding the Fourth Proportional to 260,760,385,984.80, 391,140,578,977.20 and 253,413,745,600.80

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Solution

The fourth proportional to 260,760,385,984.80, 391,140,578,977.20 and 253,413,745,600.80 is: 380,120,618,401.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,760,385,984.80 : 391,140,578,977.20 = 253,413,745,600.80 : x
  2. Step 2: Convert to fraction form
    260,760,385,984.80/391,140,578,977.20 = 253,413,745,600.80/x
  3. Step 3: Cross multiply
    260,760,385,984.80x = 391,140,578,977.20 × 253,413,745,600.80
  4. Step 4: Simplify right side
    260,760,385,984.80x = 99,120,399,175,077,779,734,528
  5. Step 5: Solve for x
    x = 99,120,399,175,077,779,734,528/260,760,385,984.80
  6. Step 6: Final answer
    x = 380,120,618,401.20

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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.