Home / 386,468,272.20-579,503,828.70-113,803,609.80

Finding the Fourth Proportional to 386,468,272.20, 579,503,828.70 and 113,803,609.80

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Solution

The fourth proportional to 386,468,272.20, 579,503,828.70 and 113,803,609.80 is: 170,646,938.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,468,272.20 : 579,503,828.70 = 113,803,609.80 : x
  2. Step 2: Convert to fraction form
    386,468,272.20/579,503,828.70 = 113,803,609.80/x
  3. Step 3: Cross multiply
    386,468,272.20x = 579,503,828.70 × 113,803,609.80
  4. Step 4: Simplify right side
    386,468,272.20x = 65,949,627,598,980,848
  5. Step 5: Solve for x
    x = 65,949,627,598,980,848/386,468,272.20
  6. Step 6: Final answer
    x = 170,646,938.81

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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.