Home / 21,285,004.10-31,931,653.35-8,503,333.70

Finding the Fourth Proportional to 21,285,004.10, 31,931,653.35 and 8,503,333.70

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Solution

The fourth proportional to 21,285,004.10, 31,931,653.35 and 8,503,333.70 is: 12,756,657.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,285,004.10 : 31,931,653.35 = 8,503,333.70 : x
  2. Step 2: Convert to fraction form
    21,285,004.10/31,931,653.35 = 8,503,333.70/x
  3. Step 3: Cross multiply
    21,285,004.10x = 31,931,653.35 × 8,503,333.70
  4. Step 4: Simplify right side
    21,285,004.10x = 271,525,504,027,772.88
  5. Step 5: Solve for x
    x = 271,525,504,027,772.88/21,285,004.10
  6. Step 6: Final answer
    x = 12,756,657.35

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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.