Home / 20,994,003.20-31,491,004.80-8,877,148.40

Finding the Fourth Proportional to 20,994,003.20, 31,491,004.80 and 8,877,148.40

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Solution

The fourth proportional to 20,994,003.20, 31,491,004.80 and 8,877,148.40 is: 13,315,722.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,994,003.20 : 31,491,004.80 = 8,877,148.40 : x
  2. Step 2: Convert to fraction form
    20,994,003.20/31,491,004.80 = 8,877,148.40/x
  3. Step 3: Cross multiply
    20,994,003.20x = 31,491,004.80 × 8,877,148.40
  4. Step 4: Simplify right side
    20,994,003.20x = 279,550,322,874,712.34
  5. Step 5: Solve for x
    x = 279,550,322,874,712.34/20,994,003.20
  6. Step 6: Final answer
    x = 13,315,722.60

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1.5x scale

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.