Home / 1,380,823,916.85-2,071,221,703.52-798,187,433.85

Finding the Fourth Proportional to 1,380,823,916.85, 2,071,221,703.52 and 798,187,433.85

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Solution

The fourth proportional to 1,380,823,916.85, 2,071,221,703.52 and 798,187,433.85 is: 1,197,272,958.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,823,916.85 : 2,071,221,703.52 = 798,187,433.85 : x
  2. Step 2: Convert to fraction form
    1,380,823,916.85/2,071,221,703.52 = 798,187,433.85/x
  3. Step 3: Cross multiply
    1,380,823,916.85x = 2,071,221,703.52 × 798,187,433.85
  4. Step 4: Simplify right side
    1,380,823,916.85x = 1,653,223,136,463,063,552
  5. Step 5: Solve for x
    x = 1,653,223,136,463,063,552/1,380,823,916.85
  6. Step 6: Final answer
    x = 1,197,272,958.77

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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.