Home / 43,115,428.20-64,673,142.30-21,553,357.80

Finding the Fourth Proportional to 43,115,428.20, 64,673,142.30 and 21,553,357.80

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Solution

The fourth proportional to 43,115,428.20, 64,673,142.30 and 21,553,357.80 is: 32,330,036.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,115,428.20 : 64,673,142.30 = 21,553,357.80 : x
  2. Step 2: Convert to fraction form
    43,115,428.20/64,673,142.30 = 21,553,357.80/x
  3. Step 3: Cross multiply
    43,115,428.20x = 64,673,142.30 × 21,553,357.80
  4. Step 4: Simplify right side
    43,115,428.20x = 1,393,923,376,042,215
  5. Step 5: Solve for x
    x = 1,393,923,376,042,215/43,115,428.20
  6. Step 6: Final answer
    x = 32,330,036.70

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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.