Home / 1,280,451,942.88-1,766,482,600.57-857,201,968.69

Finding the Fourth Proportional to 1,280,451,942.88, 1,766,482,600.57 and 857,201,968.69

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Solution

The fourth proportional to 1,280,451,942.88, 1,766,482,600.57 and 857,201,968.69 is: 1,182,576,488.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,451,942.88 : 1,766,482,600.57 = 857,201,968.69 : x
  2. Step 2: Convert to fraction form
    1,280,451,942.88/1,766,482,600.57 = 857,201,968.69/x
  3. Step 3: Cross multiply
    1,280,451,942.88x = 1,766,482,600.57 × 857,201,968.69
  4. Step 4: Simplify right side
    1,280,451,942.88x = 1,514,232,362,858,675,712
  5. Step 5: Solve for x
    x = 1,514,232,362,858,675,712/1,280,451,942.88
  6. Step 6: Final answer
    x = 1,182,576,488.94

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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.