Home / 305,461,920.55-421,551,331.55-180,019,410.79

Finding the Fourth Proportional to 305,461,920.55, 421,551,331.55 and 180,019,410.79

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Solution

The fourth proportional to 305,461,920.55, 421,551,331.55 and 180,019,410.79 is: 248,434,967.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,461,920.55 : 421,551,331.55 = 180,019,410.79 : x
  2. Step 2: Convert to fraction form
    305,461,920.55/421,551,331.55 = 180,019,410.79/x
  3. Step 3: Cross multiply
    305,461,920.55x = 421,551,331.55 × 180,019,410.79
  4. Step 4: Simplify right side
    305,461,920.55x = 75,887,422,322,470,832
  5. Step 5: Solve for x
    x = 75,887,422,322,470,832/305,461,920.55
  6. Step 6: Final answer
    x = 248,434,967.56

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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.