Home / 214,733,206.40-322,015,828.80-78,348,387.20

Finding the Fourth Proportional to 214,733,206.40, 322,015,828.80 and 78,348,387.20

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Solution

The fourth proportional to 214,733,206.40, 322,015,828.80 and 78,348,387.20 is: 117,491,939.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,733,206.40 : 322,015,828.80 = 78,348,387.20 : x
  2. Step 2: Convert to fraction form
    214,733,206.40/322,015,828.80 = 78,348,387.20/x
  3. Step 3: Cross multiply
    214,733,206.40x = 322,015,828.80 × 78,348,387.20
  4. Step 4: Simplify right side
    214,733,206.40x = 25,229,420,839,351,312
  5. Step 5: Solve for x
    x = 25,229,420,839,351,312/214,733,206.40
  6. Step 6: Final answer
    x = 117,491,939.24

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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.