Home / 21,008,002.70-31,512,004.05-10,369,052.30

Finding the Fourth Proportional to 21,008,002.70, 31,512,004.05 and 10,369,052.30

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Solution

The fourth proportional to 21,008,002.70, 31,512,004.05 and 10,369,052.30 is: 15,553,578.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008,002.70 : 31,512,004.05 = 10,369,052.30 : x
  2. Step 2: Convert to fraction form
    21,008,002.70/31,512,004.05 = 10,369,052.30/x
  3. Step 3: Cross multiply
    21,008,002.70x = 31,512,004.05 × 10,369,052.30
  4. Step 4: Simplify right side
    21,008,002.70x = 326,749,618,072,261.88
  5. Step 5: Solve for x
    x = 326,749,618,072,261.88/21,008,002.70
  6. Step 6: Final answer
    x = 15,553,578.45

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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.