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Finding the Third Proportional to 389,588,339 and 857,093,572.50

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Solution

The third proportional to 389,588,339 and 857,093,572.50 is: 1,885,604,158.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,588,339 : 857,093,572.50 = 857,093,572.50 : x
  2. Step 2: Convert to fraction form
    389,588,339/857,093,572.50 = 857,093,572.50/x
  3. Step 3: Cross multiply
    389,588,339x = 857,093,572.50 × 857,093,572.50
  4. Step 4: Simplify right side
    389,588,339x = 734,609,392,020,812,800
  5. Step 5: Solve for x
    x = 734,609,392,020,812,800/389,588,339
  6. Step 6: Final answer
    x = 1,885,604,158.24

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.