Home / 526,458,885.88-727,270,027.40-420,473,149.72

Finding the Fourth Proportional to 526,458,885.88, 727,270,027.40 and 420,473,149.72

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Solution

The fourth proportional to 526,458,885.88, 727,270,027.40 and 420,473,149.72 is: 580,857,360.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,458,885.88 : 727,270,027.40 = 420,473,149.72 : x
  2. Step 2: Convert to fraction form
    526,458,885.88/727,270,027.40 = 420,473,149.72/x
  3. Step 3: Cross multiply
    526,458,885.88x = 727,270,027.40 × 420,473,149.72
  4. Step 4: Simplify right side
    526,458,885.88x = 305,797,519,117,828,736
  5. Step 5: Solve for x
    x = 305,797,519,117,828,736/526,458,885.88
  6. Step 6: Final answer
    x = 580,857,360.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.