Home / 478,420,652.24-660,220,945.02-258,404,078.24

Finding the Fourth Proportional to 478,420,652.24, 660,220,945.02 and 258,404,078.24

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Solution

The fourth proportional to 478,420,652.24, 660,220,945.02 and 258,404,078.24 is: 356,597,868.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,420,652.24 : 660,220,945.02 = 258,404,078.24 : x
  2. Step 2: Convert to fraction form
    478,420,652.24/660,220,945.02 = 258,404,078.24/x
  3. Step 3: Cross multiply
    478,420,652.24x = 660,220,945.02 × 258,404,078.24
  4. Step 4: Simplify right side
    478,420,652.24x = 170,603,784,729,333,728
  5. Step 5: Solve for x
    x = 170,603,784,729,333,728/478,420,652.24
  6. Step 6: Final answer
    x = 356,597,868.28

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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.