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Finding the Third Proportional to 98,439,457 and 212,023,970

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Solution

The third proportional to 98,439,457 and 212,023,970 is: 456,668,141.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,439,457 : 212,023,970 = 212,023,970 : x
  2. Step 2: Convert to fraction form
    98,439,457/212,023,970 = 212,023,970/x
  3. Step 3: Cross multiply
    98,439,457x = 212,023,970 × 212,023,970
  4. Step 4: Simplify right side
    98,439,457x = 44,954,163,854,560,896
  5. Step 5: Solve for x
    x = 44,954,163,854,560,896/98,439,457
  6. Step 6: Final answer
    x = 456,668,141.26

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These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.