Home / 147,576,643.20-221,498,809.20-74,844,021.60

Finding the Fourth Proportional to 147,576,643.20, 221,498,809.20 and 74,844,021.60

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Solution

The fourth proportional to 147,576,643.20, 221,498,809.20 and 74,844,021.60 is: 112,333,912.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,576,643.20 : 221,498,809.20 = 74,844,021.60 : x
  2. Step 2: Convert to fraction form
    147,576,643.20/221,498,809.20 = 74,844,021.60/x
  3. Step 3: Cross multiply
    147,576,643.20x = 221,498,809.20 × 74,844,021.60
  4. Step 4: Simplify right side
    147,576,643.20x = 16,577,861,660,139,076
  5. Step 5: Solve for x
    x = 16,577,861,660,139,076/147,576,643.20
  6. Step 6: Final answer
    x = 112,333,912.07

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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.