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Finding the Third Proportional to 403,617,654 and 631,771,865

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Solution

The third proportional to 403,617,654 and 631,771,865 is: 988,895,518.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,617,654 : 631,771,865 = 631,771,865 : x
  2. Step 2: Convert to fraction form
    403,617,654/631,771,865 = 631,771,865/x
  3. Step 3: Cross multiply
    403,617,654x = 631,771,865 × 631,771,865
  4. Step 4: Simplify right side
    403,617,654x = 399,135,689,405,578,240
  5. Step 5: Solve for x
    x = 399,135,689,405,578,240/403,617,654
  6. Step 6: Final answer
    x = 988,895,518.94

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.