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Finding the Third Proportional to 68,751,420 and 99,426,555

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Solution

The third proportional to 68,751,420 and 99,426,555 is: 143,788,155.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,751,420 : 99,426,555 = 99,426,555 : x
  2. Step 2: Convert to fraction form
    68,751,420/99,426,555 = 99,426,555/x
  3. Step 3: Cross multiply
    68,751,420x = 99,426,555 × 99,426,555
  4. Step 4: Simplify right side
    68,751,420x = 9,885,639,839,168,024
  5. Step 5: Solve for x
    x = 9,885,639,839,168,024/68,751,420
  6. Step 6: Final answer
    x = 143,788,155.05

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.