Home / 8,910,043.20-13,365,064.80-2,178,457.20

Finding the Fourth Proportional to 8,910,043.20, 13,365,064.80 and 2,178,457.20

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Solution

The fourth proportional to 8,910,043.20, 13,365,064.80 and 2,178,457.20 is: 3,267,685.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,910,043.20 : 13,365,064.80 = 2,178,457.20 : x
  2. Step 2: Convert to fraction form
    8,910,043.20/13,365,064.80 = 2,178,457.20/x
  3. Step 3: Cross multiply
    8,910,043.20x = 13,365,064.80 × 2,178,457.20
  4. Step 4: Simplify right side
    8,910,043.20x = 29,115,221,642,026.56
  5. Step 5: Solve for x
    x = 29,115,221,642,026.56/8,910,043.20
  6. Step 6: Final answer
    x = 3,267,685.80

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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.