Home / 478,448,900.30-660,259,747.28-258,432,326.30

Finding the Fourth Proportional to 478,448,900.30, 660,259,747.28 and 258,432,326.30

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Solution

The fourth proportional to 478,448,900.30, 660,259,747.28 and 258,432,326.30 is: 356,636,753.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,448,900.30 : 660,259,747.28 = 258,432,326.30 : x
  2. Step 2: Convert to fraction form
    478,448,900.30/660,259,747.28 = 258,432,326.30/x
  3. Step 3: Cross multiply
    478,448,900.30x = 660,259,747.28 × 258,432,326.30
  4. Step 4: Simplify right side
    478,448,900.30x = 170,632,462,449,682,976
  5. Step 5: Solve for x
    x = 170,632,462,449,682,976/478,448,900.30
  6. Step 6: Final answer
    x = 356,636,753.36

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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.