Home / 512,521,311.16-768,913,011.78-149,015,667.16

Finding the Fourth Proportional to 512,521,311.16, 768,913,011.78 and 149,015,667.16

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Solution

The fourth proportional to 512,521,311.16, 768,913,011.78 and 149,015,667.16 is: 223,561,602.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,521,311.16 : 768,913,011.78 = 149,015,667.16 : x
  2. Step 2: Convert to fraction form
    512,521,311.16/768,913,011.78 = 149,015,667.16/x
  3. Step 3: Cross multiply
    512,521,311.16x = 768,913,011.78 × 149,015,667.16
  4. Step 4: Simplify right side
    512,521,311.16x = 114,580,085,438,401,632
  5. Step 5: Solve for x
    x = 114,580,085,438,401,632/512,521,311.16
  6. Step 6: Final answer
    x = 223,561,602.11

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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.