Home / 20,664,721.62-31,004,052.48-9,148,598.46

Finding the Fourth Proportional to 20,664,721.62, 31,004,052.48 and 9,148,598.46

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Solution

The fourth proportional to 20,664,721.62, 31,004,052.48 and 9,148,598.46 is: 13,725,983.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,664,721.62 : 31,004,052.48 = 9,148,598.46 : x
  2. Step 2: Convert to fraction form
    20,664,721.62/31,004,052.48 = 9,148,598.46/x
  3. Step 3: Cross multiply
    20,664,721.62x = 31,004,052.48 × 9,148,598.46
  4. Step 4: Simplify right side
    20,664,721.62x = 283,643,626,772,287.19
  5. Step 5: Solve for x
    x = 283,643,626,772,287.19/20,664,721.62
  6. Step 6: Final answer
    x = 13,725,983.44

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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.