Home / 686,594,672.20-1,029,892,008.30-255,684,003.40

Finding the Fourth Proportional to 686,594,672.20, 1,029,892,008.30 and 255,684,003.40

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Solution

The fourth proportional to 686,594,672.20, 1,029,892,008.30 and 255,684,003.40 is: 383,526,005.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,594,672.20 : 1,029,892,008.30 = 255,684,003.40 : x
  2. Step 2: Convert to fraction form
    686,594,672.20/1,029,892,008.30 = 255,684,003.40/x
  3. Step 3: Cross multiply
    686,594,672.20x = 1,029,892,008.30 × 255,684,003.40
  4. Step 4: Simplify right side
    686,594,672.20x = 263,326,911,751,810,016
  5. Step 5: Solve for x
    x = 263,326,911,751,810,016/686,594,672.20
  6. Step 6: Final answer
    x = 383,526,005.10

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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.