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Finding the Third Proportional to 399,207,070.50 and 873,670,708.50

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Solution

The third proportional to 399,207,070.50 and 873,670,708.50 is: 1,912,041,552.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,207,070.50 : 873,670,708.50 = 873,670,708.50 : x
  2. Step 2: Convert to fraction form
    399,207,070.50/873,670,708.50 = 873,670,708.50/x
  3. Step 3: Cross multiply
    399,207,070.50x = 873,670,708.50 × 873,670,708.50
  4. Step 4: Simplify right side
    399,207,070.50x = 763,300,506,890,892,032
  5. Step 5: Solve for x
    x = 763,300,506,890,892,032/399,207,070.50
  6. Step 6: Final answer
    x = 1,912,041,552.61

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.