Home / 1,280,451,936.09-1,766,482,591.27-857,201,961.93

Finding the Fourth Proportional to 1,280,451,936.09, 1,766,482,591.27 and 857,201,961.93

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Solution

The fourth proportional to 1,280,451,936.09, 1,766,482,591.27 and 857,201,961.93 is: 1,182,576,479.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,451,936.09 : 1,766,482,591.27 = 857,201,961.93 : x
  2. Step 2: Convert to fraction form
    1,280,451,936.09/1,766,482,591.27 = 857,201,961.93/x
  3. Step 3: Cross multiply
    1,280,451,936.09x = 1,766,482,591.27 × 857,201,961.93
  4. Step 4: Simplify right side
    1,280,451,936.09x = 1,514,232,342,942,367,232
  5. Step 5: Solve for x
    x = 1,514,232,342,942,367,232/1,280,451,936.09
  6. Step 6: Final answer
    x = 1,182,576,479.65

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Double scale
Find fourth proportional to 1,280,451,937.09, 1,766,482,592.64 and 857,201,962.93
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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.