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Finding the Third Proportional to 403,617,649.50 and 631,771,858.50

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Solution

The third proportional to 403,617,649.50 and 631,771,858.50 is: 988,895,509.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,617,649.50 : 631,771,858.50 = 631,771,858.50 : x
  2. Step 2: Convert to fraction form
    403,617,649.50/631,771,858.50 = 631,771,858.50/x
  3. Step 3: Cross multiply
    403,617,649.50x = 631,771,858.50 × 631,771,858.50
  4. Step 4: Simplify right side
    403,617,649.50x = 399,135,681,192,544,000
  5. Step 5: Solve for x
    x = 399,135,681,192,544,000/403,617,649.50
  6. Step 6: Final answer
    x = 988,895,509.62

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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.