Home / 478,334,684.79-660,101,873.31-258,318,110.79

Finding the Fourth Proportional to 478,334,684.79, 660,101,873.31 and 258,318,110.79

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Solution

The fourth proportional to 478,334,684.79, 660,101,873.31 and 258,318,110.79 is: 356,478,997.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,334,684.79 : 660,101,873.31 = 258,318,110.79 : x
  2. Step 2: Convert to fraction form
    478,334,684.79/660,101,873.31 = 258,318,110.79/x
  3. Step 3: Cross multiply
    478,334,684.79x = 660,101,873.31 × 258,318,110.79
  4. Step 4: Simplify right side
    478,334,684.79x = 170,516,268,842,379,104
  5. Step 5: Solve for x
    x = 170,516,268,842,379,104/478,334,684.79
  6. Step 6: Final answer
    x = 356,478,997.37

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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.