Home / 725,643,639.45-1,001,345,070.83-412,334,369.37

Finding the Fourth Proportional to 725,643,639.45, 1,001,345,070.83 and 412,334,369.37

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Solution

The fourth proportional to 725,643,639.45, 1,001,345,070.83 and 412,334,369.37 is: 568,996,909.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,643,639.45 : 1,001,345,070.83 = 412,334,369.37 : x
  2. Step 2: Convert to fraction form
    725,643,639.45/1,001,345,070.83 = 412,334,369.37/x
  3. Step 3: Cross multiply
    725,643,639.45x = 1,001,345,070.83 × 412,334,369.37
  4. Step 4: Simplify right side
    725,643,639.45x = 412,888,988,300,384,384
  5. Step 5: Solve for x
    x = 412,888,988,300,384,384/725,643,639.45
  6. Step 6: Final answer
    x = 568,996,909.58

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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.