Home / 421,004,227.86-580,921,290.80-242,353,583.26

Finding the Fourth Proportional to 421,004,227.86, 580,921,290.80 and 242,353,583.26

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Solution

The fourth proportional to 421,004,227.86, 580,921,290.80 and 242,353,583.26 is: 334,410,789.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,004,227.86 : 580,921,290.80 = 242,353,583.26 : x
  2. Step 2: Convert to fraction form
    421,004,227.86/580,921,290.80 = 242,353,583.26/x
  3. Step 3: Cross multiply
    421,004,227.86x = 580,921,290.80 × 242,353,583.26
  4. Step 4: Simplify right side
    421,004,227.86x = 140,788,356,417,404,448
  5. Step 5: Solve for x
    x = 140,788,356,417,404,448/421,004,227.86
  6. Step 6: Final answer
    x = 334,410,789.97

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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.