Home / 421,004,224.86-580,921,286.67-242,353,580.25

Finding the Fourth Proportional to 421,004,224.86, 580,921,286.67 and 242,353,580.25

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Solution

The fourth proportional to 421,004,224.86, 580,921,286.67 and 242,353,580.25 is: 334,410,785.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,004,224.86 : 580,921,286.67 = 242,353,580.25 : x
  2. Step 2: Convert to fraction form
    421,004,224.86/580,921,286.67 = 242,353,580.25/x
  3. Step 3: Cross multiply
    421,004,224.86x = 580,921,286.67 × 242,353,580.25
  4. Step 4: Simplify right side
    421,004,224.86x = 140,788,353,667,911,088
  5. Step 5: Solve for x
    x = 140,788,353,667,911,088/421,004,224.86
  6. Step 6: Final answer
    x = 334,410,785.82

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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.