Home / 628,456,208.52-867,296,475.78-349,997,731.80

Finding the Fourth Proportional to 628,456,208.52, 867,296,475.78 and 349,997,731.80

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Solution

The fourth proportional to 628,456,208.52, 867,296,475.78 and 349,997,731.80 is: 483,011,855.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,456,208.52 : 867,296,475.78 = 349,997,731.80 : x
  2. Step 2: Convert to fraction form
    628,456,208.52/867,296,475.78 = 349,997,731.80/x
  3. Step 3: Cross multiply
    628,456,208.52x = 867,296,475.78 × 349,997,731.80
  4. Step 4: Simplify right side
    628,456,208.52x = 303,551,799,321,133,632
  5. Step 5: Solve for x
    x = 303,551,799,321,133,632/628,456,208.52
  6. Step 6: Final answer
    x = 483,011,855.41

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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.