Home / 31,590,729.68-47,388,161.18-9,728,427.92

Finding the Fourth Proportional to 31,590,729.68, 47,388,161.18 and 9,728,427.92

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Solution

The fourth proportional to 31,590,729.68, 47,388,161.18 and 9,728,427.92 is: 14,593,278.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,590,729.68 : 47,388,161.18 = 9,728,427.92 : x
  2. Step 2: Convert to fraction form
    31,590,729.68/47,388,161.18 = 9,728,427.92/x
  3. Step 3: Cross multiply
    31,590,729.68x = 47,388,161.18 × 9,728,427.92
  4. Step 4: Simplify right side
    31,590,729.68x = 461,012,310,300,972.12
  5. Step 5: Solve for x
    x = 461,012,310,300,972.12/31,590,729.68
  6. Step 6: Final answer
    x = 14,593,278.31

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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.