Home / 421,004,234.75-580,921,300.30-242,353,590.17

Finding the Fourth Proportional to 421,004,234.75, 580,921,300.30 and 242,353,590.17

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Solution

The fourth proportional to 421,004,234.75, 580,921,300.30 and 242,353,590.17 is: 334,410,799.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,004,234.75 : 580,921,300.30 = 242,353,590.17 : x
  2. Step 2: Convert to fraction form
    421,004,234.75/580,921,300.30 = 242,353,590.17/x
  3. Step 3: Cross multiply
    421,004,234.75x = 580,921,300.30 × 242,353,590.17
  4. Step 4: Simplify right side
    421,004,234.75x = 140,788,362,732,717,920
  5. Step 5: Solve for x
    x = 140,788,362,732,717,920/421,004,234.75
  6. Step 6: Final answer
    x = 334,410,799.49

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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.