Home / 20,640,699.20-30,994,096.80-16,415,998.40

Finding the Fourth Proportional to 20,640,699.20, 30,994,096.80 and 16,415,998.40

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Solution

The fourth proportional to 20,640,699.20, 30,994,096.80 and 16,415,998.40 is: 24,650,281.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,640,699.20 : 30,994,096.80 = 16,415,998.40 : x
  2. Step 2: Convert to fraction form
    20,640,699.20/30,994,096.80 = 16,415,998.40/x
  3. Step 3: Cross multiply
    20,640,699.20x = 30,994,096.80 × 16,415,998.40
  4. Step 4: Simplify right side
    20,640,699.20x = 508,799,043,478,245.12
  5. Step 5: Solve for x
    x = 508,799,043,478,245.12/20,640,699.20
  6. Step 6: Final answer
    x = 24,650,281.40

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Similar ratio
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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.