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Finding the Third Proportional to 70,618,210 and 149,636,929

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Solution

The third proportional to 70,618,210 and 149,636,929 is: 317,074,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,618,210 : 149,636,929 = 149,636,929 : x
  2. Step 2: Convert to fraction form
    70,618,210/149,636,929 = 149,636,929/x
  3. Step 3: Cross multiply
    70,618,210x = 149,636,929 × 149,636,929
  4. Step 4: Simplify right side
    70,618,210x = 22,391,210,520,551,040
  5. Step 5: Solve for x
    x = 22,391,210,520,551,040/70,618,210
  6. Step 6: Final answer
    x = 317,074,172.80

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.