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Finding the Third Proportional to 399,219,030 and 873,695,646

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Solution

The third proportional to 399,219,030 and 873,695,646 is: 1,912,093,423.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,219,030 : 873,695,646 = 873,695,646 : x
  2. Step 2: Convert to fraction form
    399,219,030/873,695,646 = 873,695,646/x
  3. Step 3: Cross multiply
    399,219,030x = 873,695,646 × 873,695,646
  4. Step 4: Simplify right side
    399,219,030x = 763,344,081,839,357,312
  5. Step 5: Solve for x
    x = 763,344,081,839,357,312/399,219,030
  6. Step 6: Final answer
    x = 1,912,093,423.60

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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.