Home / 260,554,194.96-390,843,861.48-85,673,357.04

Finding the Fourth Proportional to 260,554,194.96, 390,843,861.48 and 85,673,357.04

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Solution

The fourth proportional to 260,554,194.96, 390,843,861.48 and 85,673,357.04 is: 128,514,168.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,554,194.96 : 390,843,861.48 = 85,673,357.04 : x
  2. Step 2: Convert to fraction form
    260,554,194.96/390,843,861.48 = 85,673,357.04/x
  3. Step 3: Cross multiply
    260,554,194.96x = 390,843,861.48 × 85,673,357.04
  4. Step 4: Simplify right side
    260,554,194.96x = 33,484,905,691,468,348
  5. Step 5: Solve for x
    x = 33,484,905,691,468,348/260,554,194.96
  6. Step 6: Final answer
    x = 128,514,168.41

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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.