Home / 756,441,463.09-1,135,006,956.08-388,234,985.61

Finding the Fourth Proportional to 756,441,463.09, 1,135,006,956.08 and 388,234,985.61

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Solution

The fourth proportional to 756,441,463.09, 1,135,006,956.08 and 388,234,985.61 is: 582,529,423.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,441,463.09 : 1,135,006,956.08 = 388,234,985.61 : x
  2. Step 2: Convert to fraction form
    756,441,463.09/1,135,006,956.08 = 388,234,985.61/x
  3. Step 3: Cross multiply
    756,441,463.09x = 1,135,006,956.08 × 388,234,985.61
  4. Step 4: Simplify right side
    756,441,463.09x = 440,649,409,259,998,144
  5. Step 5: Solve for x
    x = 440,649,409,259,998,144/756,441,463.09
  6. Step 6: Final answer
    x = 582,529,423.31

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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.