Home / 221,050,906.40-331,576,359.60-65,610,318.80

Finding the Fourth Proportional to 221,050,906.40, 331,576,359.60 and 65,610,318.80

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Solution

The fourth proportional to 221,050,906.40, 331,576,359.60 and 65,610,318.80 is: 98,415,478.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,050,906.40 : 331,576,359.60 = 65,610,318.80 : x
  2. Step 2: Convert to fraction form
    221,050,906.40/331,576,359.60 = 65,610,318.80/x
  3. Step 3: Cross multiply
    221,050,906.40x = 331,576,359.60 × 65,610,318.80
  4. Step 4: Simplify right side
    221,050,906.40x = 21,754,830,659,899,440
  5. Step 5: Solve for x
    x = 21,754,830,659,899,440/221,050,906.40
  6. Step 6: Final answer
    x = 98,415,478.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.