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Finding the Third Proportional to 621,225,045 and 988,968,730.50

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Solution

The third proportional to 621,225,045 and 988,968,730.50 is: 1,574,403,926.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,225,045 : 988,968,730.50 = 988,968,730.50 : x
  2. Step 2: Convert to fraction form
    621,225,045/988,968,730.50 = 988,968,730.50/x
  3. Step 3: Cross multiply
    621,225,045x = 988,968,730.50 × 988,968,730.50
  4. Step 4: Simplify right side
    621,225,045x = 978,059,149,906,781,568
  5. Step 5: Solve for x
    x = 978,059,149,906,781,568/621,225,045
  6. Step 6: Final answer
    x = 1,574,403,926.21

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.