Home / 77,432,285.72-106,879,119.28-50,613,512.16

Finding the Fourth Proportional to 77,432,285.72, 106,879,119.28 and 50,613,512.16

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Solution

The fourth proportional to 77,432,285.72, 106,879,119.28 and 50,613,512.16 is: 69,861,396.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,432,285.72 : 106,879,119.28 = 50,613,512.16 : x
  2. Step 2: Convert to fraction form
    77,432,285.72/106,879,119.28 = 50,613,512.16/x
  3. Step 3: Cross multiply
    77,432,285.72x = 106,879,119.28 × 50,613,512.16
  4. Step 4: Simplify right side
    77,432,285.72x = 5,409,527,603,328,370
  5. Step 5: Solve for x
    x = 5,409,527,603,328,370/77,432,285.72
  6. Step 6: Final answer
    x = 69,861,396.35

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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.