Home / 305,461,862.61-421,551,251.43-180,019,352.85

Finding the Fourth Proportional to 305,461,862.61, 421,551,251.43 and 180,019,352.85

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Solution

The fourth proportional to 305,461,862.61, 421,551,251.43 and 180,019,352.85 is: 248,434,887.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,461,862.61 : 421,551,251.43 = 180,019,352.85 : x
  2. Step 2: Convert to fraction form
    305,461,862.61/421,551,251.43 = 180,019,352.85/x
  3. Step 3: Cross multiply
    305,461,862.61x = 421,551,251.43 × 180,019,352.85
  4. Step 4: Simplify right side
    305,461,862.61x = 75,887,383,475,536,240
  5. Step 5: Solve for x
    x = 75,887,383,475,536,240/305,461,862.61
  6. Step 6: Final answer
    x = 248,434,887.51

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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.