Home / 869,287,975.20-1,199,508,523.86-587,643,218.94

Finding the Fourth Proportional to 869,287,975.20, 1,199,508,523.86 and 587,643,218.94

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Solution

The fourth proportional to 869,287,975.20, 1,199,508,523.86 and 587,643,218.94 is: 810,874,037.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,287,975.20 : 1,199,508,523.86 = 587,643,218.94 : x
  2. Step 2: Convert to fraction form
    869,287,975.20/1,199,508,523.86 = 587,643,218.94/x
  3. Step 3: Cross multiply
    869,287,975.20x = 1,199,508,523.86 × 587,643,218.94
  4. Step 4: Simplify right side
    869,287,975.20x = 704,883,050,107,058,176
  5. Step 5: Solve for x
    x = 704,883,050,107,058,176/869,287,975.20
  6. Step 6: Final answer
    x = 810,874,037.39

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Double scale
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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.