Home / 986,898,138.30-1,480,347,207.45-831,929,942.70

Finding the Fourth Proportional to 986,898,138.30, 1,480,347,207.45 and 831,929,942.70

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Solution

The fourth proportional to 986,898,138.30, 1,480,347,207.45 and 831,929,942.70 is: 1,247,894,914.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,898,138.30 : 1,480,347,207.45 = 831,929,942.70 : x
  2. Step 2: Convert to fraction form
    986,898,138.30/1,480,347,207.45 = 831,929,942.70/x
  3. Step 3: Cross multiply
    986,898,138.30x = 1,480,347,207.45 × 831,929,942.70
  4. Step 4: Simplify right side
    986,898,138.30x = 1,231,545,167,469,983,744
  5. Step 5: Solve for x
    x = 1,231,545,167,469,983,744/986,898,138.30
  6. Step 6: Final answer
    x = 1,247,894,914.05

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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.