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Finding the Third Proportional to 322,406,730 and 699,551,878.50

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Solution

The third proportional to 322,406,730 and 699,551,878.50 is: 1,517,874,117.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,406,730 : 699,551,878.50 = 699,551,878.50 : x
  2. Step 2: Convert to fraction form
    322,406,730/699,551,878.50 = 699,551,878.50/x
  3. Step 3: Cross multiply
    322,406,730x = 699,551,878.50 × 699,551,878.50
  4. Step 4: Simplify right side
    322,406,730x = 489,372,830,712,878,784
  5. Step 5: Solve for x
    x = 489,372,830,712,878,784/322,406,730
  6. Step 6: Final answer
    x = 1,517,874,117.31

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.