Home / 678,574,616.25-936,508,796.73-410,797,989.74

Finding the Fourth Proportional to 678,574,616.25, 936,508,796.73 and 410,797,989.74

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Solution

The fourth proportional to 678,574,616.25, 936,508,796.73 and 410,797,989.74 is: 566,947,129.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,574,616.25 : 936,508,796.73 = 410,797,989.74 : x
  2. Step 2: Convert to fraction form
    678,574,616.25/936,508,796.73 = 410,797,989.74/x
  3. Step 3: Cross multiply
    678,574,616.25x = 936,508,796.73 × 410,797,989.74
  4. Step 4: Simplify right side
    678,574,616.25x = 384,715,931,070,510,272
  5. Step 5: Solve for x
    x = 384,715,931,070,510,272/678,574,616.25
  6. Step 6: Final answer
    x = 566,947,129.85

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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.