Home / 672,691,251.60-1,009,036,877.40-309,894,195.60

Finding the Fourth Proportional to 672,691,251.60, 1,009,036,877.40 and 309,894,195.60

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Solution

The fourth proportional to 672,691,251.60, 1,009,036,877.40 and 309,894,195.60 is: 464,841,293.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,691,251.60 : 1,009,036,877.40 = 309,894,195.60 : x
  2. Step 2: Convert to fraction form
    672,691,251.60/1,009,036,877.40 = 309,894,195.60/x
  3. Step 3: Cross multiply
    672,691,251.60x = 1,009,036,877.40 × 309,894,195.60
  4. Step 4: Simplify right side
    672,691,251.60x = 312,694,671,452,608,832
  5. Step 5: Solve for x
    x = 312,694,671,452,608,832/672,691,251.60
  6. Step 6: Final answer
    x = 464,841,293.40

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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.