Home / 869,138,168.88-1,199,200,725.72-551,482,594.80

Finding the Fourth Proportional to 869,138,168.88, 1,199,200,725.72 and 551,482,594.80

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Solution

The fourth proportional to 869,138,168.88, 1,199,200,725.72 and 551,482,594.80 is: 760,912,765.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,138,168.88 : 1,199,200,725.72 = 551,482,594.80 : x
  2. Step 2: Convert to fraction form
    869,138,168.88/1,199,200,725.72 = 551,482,594.80/x
  3. Step 3: Cross multiply
    869,138,168.88x = 1,199,200,725.72 × 551,482,594.80
  4. Step 4: Simplify right side
    869,138,168.88x = 661,338,327,906,108,672
  5. Step 5: Solve for x
    x = 661,338,327,906,108,672/869,138,168.88
  6. Step 6: Final answer
    x = 760,912,765.76

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Double scale
Find fourth proportional to 869,138,169.88, 1,199,200,727.10 and 551,482,595.80
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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.