Home / 628,761,825.91-867,666,057.42-342,647,276.48

Finding the Fourth Proportional to 628,761,825.91, 867,666,057.42 and 342,647,276.48

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Solution

The fourth proportional to 628,761,825.91, 867,666,057.42 and 342,647,276.48 is: 472,839,474.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,761,825.91 : 867,666,057.42 = 342,647,276.48 : x
  2. Step 2: Convert to fraction form
    628,761,825.91/867,666,057.42 = 342,647,276.48/x
  3. Step 3: Cross multiply
    628,761,825.91x = 867,666,057.42 × 342,647,276.48
  4. Step 4: Simplify right side
    628,761,825.91x = 297,303,411,473,553,728
  5. Step 5: Solve for x
    x = 297,303,411,473,553,728/628,761,825.91
  6. Step 6: Final answer
    x = 472,839,474.70

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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.