Home / 1,385,320,734.72-1,911,932,817.26-849,377,620.26

Finding the Fourth Proportional to 1,385,320,734.72, 1,911,932,817.26 and 849,377,620.26

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Solution

The fourth proportional to 1,385,320,734.72, 1,911,932,817.26 and 849,377,620.26 is: 1,172,257,734.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,320,734.72 : 1,911,932,817.26 = 849,377,620.26 : x
  2. Step 2: Convert to fraction form
    1,385,320,734.72/1,911,932,817.26 = 849,377,620.26/x
  3. Step 3: Cross multiply
    1,385,320,734.72x = 1,911,932,817.26 × 849,377,620.26
  4. Step 4: Simplify right side
    1,385,320,734.72x = 1,623,952,946,417,049,344
  5. Step 5: Solve for x
    x = 1,623,952,946,417,049,344/1,385,320,734.72
  6. Step 6: Final answer
    x = 1,172,257,734.77

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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.