Home / 526,458,877.86-727,270,016.34-420,473,141.70

Finding the Fourth Proportional to 526,458,877.86, 727,270,016.34 and 420,473,141.70

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Solution

The fourth proportional to 526,458,877.86, 727,270,016.34 and 420,473,141.70 is: 580,857,349.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,458,877.86 : 727,270,016.34 = 420,473,141.70 : x
  2. Step 2: Convert to fraction form
    526,458,877.86/727,270,016.34 = 420,473,141.70/x
  3. Step 3: Cross multiply
    526,458,877.86x = 727,270,016.34 × 420,473,141.70
  4. Step 4: Simplify right side
    526,458,877.86x = 305,797,508,634,690,112
  5. Step 5: Solve for x
    x = 305,797,508,634,690,112/526,458,877.86
  6. Step 6: Final answer
    x = 580,857,349.92

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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.