Home / 1,207,467,163.20-1,811,200,744.80-389,579,464.20

Finding the Fourth Proportional to 1,207,467,163.20, 1,811,200,744.80 and 389,579,464.20

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Solution

The fourth proportional to 1,207,467,163.20, 1,811,200,744.80 and 389,579,464.20 is: 584,369,196.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,467,163.20 : 1,811,200,744.80 = 389,579,464.20 : x
  2. Step 2: Convert to fraction form
    1,207,467,163.20/1,811,200,744.80 = 389,579,464.20/x
  3. Step 3: Cross multiply
    1,207,467,163.20x = 1,811,200,744.80 × 389,579,464.20
  4. Step 4: Simplify right side
    1,207,467,163.20x = 705,606,615,717,824,896
  5. Step 5: Solve for x
    x = 705,606,615,717,824,896/1,207,467,163.20
  6. Step 6: Final answer
    x = 584,369,196.30

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Half scale
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Double scale
Find fourth proportional to 1,207,467,164.20, 1,811,200,746.30 and 389,579,465.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.