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Finding the Third Proportional to 143,745,613.50 and 312,676,931.25

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Solution

The third proportional to 143,745,613.50 and 312,676,931.25 is: 680,138,064.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,745,613.50 : 312,676,931.25 = 312,676,931.25 : x
  2. Step 2: Convert to fraction form
    143,745,613.50/312,676,931.25 = 312,676,931.25/x
  3. Step 3: Cross multiply
    143,745,613.50x = 312,676,931.25 × 312,676,931.25
  4. Step 4: Simplify right side
    143,745,613.50x = 97,766,863,335,917,232
  5. Step 5: Solve for x
    x = 97,766,863,335,917,232/143,745,613.50
  6. Step 6: Final answer
    x = 680,138,064.43

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.