Home / 210,844,861.92-315,855,424.74-145,254,413.76

Finding the Fourth Proportional to 210,844,861.92, 315,855,424.74 and 145,254,413.76

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Solution

The fourth proportional to 210,844,861.92, 315,855,424.74 and 145,254,413.76 is: 217,597,878.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,844,861.92 : 315,855,424.74 = 145,254,413.76 : x
  2. Step 2: Convert to fraction form
    210,844,861.92/315,855,424.74 = 145,254,413.76/x
  3. Step 3: Cross multiply
    210,844,861.92x = 315,855,424.74 × 145,254,413.76
  4. Step 4: Simplify right side
    210,844,861.92x = 45,879,394,553,524,496
  5. Step 5: Solve for x
    x = 45,879,394,553,524,496/210,844,861.92
  6. Step 6: Final answer
    x = 217,597,878.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.