Home / 478,334,708.88-660,101,906.52-258,318,134.88

Finding the Fourth Proportional to 478,334,708.88, 660,101,906.52 and 258,318,134.88

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Solution

The fourth proportional to 478,334,708.88, 660,101,906.52 and 258,318,134.88 is: 356,479,030.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,334,708.88 : 660,101,906.52 = 258,318,134.88 : x
  2. Step 2: Convert to fraction form
    478,334,708.88/660,101,906.52 = 258,318,134.88/x
  3. Step 3: Cross multiply
    478,334,708.88x = 660,101,906.52 × 258,318,134.88
  4. Step 4: Simplify right side
    478,334,708.88x = 170,516,293,322,978,496
  5. Step 5: Solve for x
    x = 170,516,293,322,978,496/478,334,708.88
  6. Step 6: Final answer
    x = 356,479,030.60

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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.