Home / 864,825,855.36-1,299,308,296.72-554,541,388.79

Finding the Fourth Proportional to 864,825,855.36, 1,299,308,296.72 and 554,541,388.79

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Solution

The fourth proportional to 864,825,855.36, 1,299,308,296.72 and 554,541,388.79 is: 833,139,091.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,825,855.36 : 1,299,308,296.72 = 554,541,388.79 : x
  2. Step 2: Convert to fraction form
    864,825,855.36/1,299,308,296.72 = 554,541,388.79/x
  3. Step 3: Cross multiply
    864,825,855.36x = 1,299,308,296.72 × 554,541,388.79
  4. Step 4: Simplify right side
    864,825,855.36x = 720,520,227,322,648,832
  5. Step 5: Solve for x
    x = 720,520,227,322,648,832/864,825,855.36
  6. Step 6: Final answer
    x = 833,139,091.36

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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.