Home / 21,284,999.10-31,931,645.85-8,503,328.70

Finding the Fourth Proportional to 21,284,999.10, 31,931,645.85 and 8,503,328.70

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Solution

The fourth proportional to 21,284,999.10, 31,931,645.85 and 8,503,328.70 is: 12,756,649.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,284,999.10 : 31,931,645.85 = 8,503,328.70 : x
  2. Step 2: Convert to fraction form
    21,284,999.10/31,931,645.85 = 8,503,328.70/x
  3. Step 3: Cross multiply
    21,284,999.10x = 31,931,645.85 × 8,503,328.70
  4. Step 4: Simplify right side
    21,284,999.10x = 271,525,280,594,540.88
  5. Step 5: Solve for x
    x = 271,525,280,594,540.88/21,284,999.10
  6. Step 6: Final answer
    x = 12,756,649.85

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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.