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Finding the Fourth Proportional to 386,157,498.60, 579,236,247.90 and 276,751,511.40

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Solution

The fourth proportional to 386,157,498.60, 579,236,247.90 and 276,751,511.40 is: 415,127,267.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,157,498.60 : 579,236,247.90 = 276,751,511.40 : x
  2. Step 2: Convert to fraction form
    386,157,498.60/579,236,247.90 = 276,751,511.40/x
  3. Step 3: Cross multiply
    386,157,498.60x = 579,236,247.90 × 276,751,511.40
  4. Step 4: Simplify right side
    386,157,498.60x = 160,304,507,063,990,048
  5. Step 5: Solve for x
    x = 160,304,507,063,990,048/386,157,498.60
  6. Step 6: Final answer
    x = 415,127,267.10

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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.