Home / 20,829,008.49-31,248,501.03-8,691,720.24

Finding the Fourth Proportional to 20,829,008.49, 31,248,501.03 and 8,691,720.24

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Solution

The fourth proportional to 20,829,008.49, 31,248,501.03 and 8,691,720.24 is: 13,039,661.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,829,008.49 : 31,248,501.03 = 8,691,720.24 : x
  2. Step 2: Convert to fraction form
    20,829,008.49/31,248,501.03 = 8,691,720.24/x
  3. Step 3: Cross multiply
    20,829,008.49x = 31,248,501.03 × 8,691,720.24
  4. Step 4: Simplify right side
    20,829,008.49x = 271,603,228,872,111.88
  5. Step 5: Solve for x
    x = 271,603,228,872,111.88/20,829,008.49
  6. Step 6: Final answer
    x = 13,039,661.92

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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.