Home / 672,801,306.40-1,009,390,916.40-327,766,189.60

Finding the Fourth Proportional to 672,801,306.40, 1,009,390,916.40 and 327,766,189.60

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Solution

The fourth proportional to 672,801,306.40, 1,009,390,916.40 and 327,766,189.60 is: 491,741,337.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,801,306.40 : 1,009,390,916.40 = 327,766,189.60 : x
  2. Step 2: Convert to fraction form
    672,801,306.40/1,009,390,916.40 = 327,766,189.60/x
  3. Step 3: Cross multiply
    672,801,306.40x = 1,009,390,916.40 × 327,766,189.60
  4. Step 4: Simplify right side
    672,801,306.40x = 330,844,214,485,280,192
  5. Step 5: Solve for x
    x = 330,844,214,485,280,192/672,801,306.40
  6. Step 6: Final answer
    x = 491,741,337.80

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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.