Home / 260,594,026.08-390,890,816.68-66,505,425.72

Finding the Fourth Proportional to 260,594,026.08, 390,890,816.68 and 66,505,425.72

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Solution

The fourth proportional to 260,594,026.08, 390,890,816.68 and 66,505,425.72 is: 99,758,081.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,594,026.08 : 390,890,816.68 = 66,505,425.72 : x
  2. Step 2: Convert to fraction form
    260,594,026.08/390,890,816.68 = 66,505,425.72/x
  3. Step 3: Cross multiply
    260,594,026.08x = 390,890,816.68 × 66,505,425.72
  4. Step 4: Simplify right side
    260,594,026.08x = 25,996,360,173,341,876
  5. Step 5: Solve for x
    x = 25,996,360,173,341,876/260,594,026.08
  6. Step 6: Final answer
    x = 99,758,081.81

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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.