Home / 1,280,452,365.93-1,766,483,183.90-857,202,391.49

Finding the Fourth Proportional to 1,280,452,365.93, 1,766,483,183.90 and 857,202,391.49

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Solution

The fourth proportional to 1,280,452,365.93, 1,766,483,183.90 and 857,202,391.49 is: 1,182,577,072.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,452,365.93 : 1,766,483,183.90 = 857,202,391.49 : x
  2. Step 2: Convert to fraction form
    1,280,452,365.93/1,766,483,183.90 = 857,202,391.49/x
  3. Step 3: Cross multiply
    1,280,452,365.93x = 1,766,483,183.90 × 857,202,391.49
  4. Step 4: Simplify right side
    1,280,452,365.93x = 1,514,233,609,769,152,256
  5. Step 5: Solve for x
    x = 1,514,233,609,769,152,256/1,280,452,365.93
  6. Step 6: Final answer
    x = 1,182,577,072.02

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Half scale
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Double scale
Find fourth proportional to 1,280,452,366.93, 1,766,483,185.28 and 857,202,392.49
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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.