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Finding the Third Proportional to 438,988,773 and 630,980,860.50

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Solution

The third proportional to 438,988,773 and 630,980,860.50 is: 906,940,839.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,988,773 : 630,980,860.50 = 630,980,860.50 : x
  2. Step 2: Convert to fraction form
    438,988,773/630,980,860.50 = 630,980,860.50/x
  3. Step 3: Cross multiply
    438,988,773x = 630,980,860.50 × 630,980,860.50
  4. Step 4: Simplify right side
    438,988,773x = 398,136,846,317,320,448
  5. Step 5: Solve for x
    x = 398,136,846,317,320,448/438,988,773
  6. Step 6: Final answer
    x = 906,940,839.50

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.