Home / 109,890,043.20-164,835,064.80-103,619,476.80

Finding the Fourth Proportional to 109,890,043.20, 164,835,064.80 and 103,619,476.80

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Solution

The fourth proportional to 109,890,043.20, 164,835,064.80 and 103,619,476.80 is: 155,429,215.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,890,043.20 : 164,835,064.80 = 103,619,476.80 : x
  2. Step 2: Convert to fraction form
    109,890,043.20/164,835,064.80 = 103,619,476.80/x
  3. Step 3: Cross multiply
    109,890,043.20x = 164,835,064.80 × 103,619,476.80
  4. Step 4: Simplify right side
    109,890,043.20x = 17,080,123,172,870,098
  5. Step 5: Solve for x
    x = 17,080,123,172,870,098/109,890,043.20
  6. Step 6: Final answer
    x = 155,429,215.20

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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.