Home / 14,820,316.50-20,451,597.51-8,205,199.78

Finding the Fourth Proportional to 14,820,316.50, 20,451,597.51 and 8,205,199.78

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Solution

The fourth proportional to 14,820,316.50, 20,451,597.51 and 8,205,199.78 is: 11,322,932.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,820,316.50 : 20,451,597.51 = 8,205,199.78 : x
  2. Step 2: Convert to fraction form
    14,820,316.50/20,451,597.51 = 8,205,199.78/x
  3. Step 3: Cross multiply
    14,820,316.50x = 20,451,597.51 × 8,205,199.78
  4. Step 4: Simplify right side
    14,820,316.50x = 167,809,443,339,967.34
  5. Step 5: Solve for x
    x = 167,809,443,339,967.34/14,820,316.50
  6. Step 6: Final answer
    x = 11,322,932.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.