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Finding the Third Proportional to 402,794,859 and 621,985,737

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Solution

The third proportional to 402,794,859 and 621,985,737 is: 960,454,803.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,794,859 : 621,985,737 = 621,985,737 : x
  2. Step 2: Convert to fraction form
    402,794,859/621,985,737 = 621,985,737/x
  3. Step 3: Cross multiply
    402,794,859x = 621,985,737 × 621,985,737
  4. Step 4: Simplify right side
    402,794,859x = 386,866,257,031,433,152
  5. Step 5: Solve for x
    x = 386,866,257,031,433,152/402,794,859
  6. Step 6: Final answer
    x = 960,454,803.20

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.