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Finding the Third Proportional to 8,680,720.50 and 12,781,252.50

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Solution

The third proportional to 8,680,720.50 and 12,781,252.50 is: 18,818,762.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680,720.50 : 12,781,252.50 = 12,781,252.50 : x
  2. Step 2: Convert to fraction form
    8,680,720.50/12,781,252.50 = 12,781,252.50/x
  3. Step 3: Cross multiply
    8,680,720.50x = 12,781,252.50 × 12,781,252.50
  4. Step 4: Simplify right side
    8,680,720.50x = 163,360,415,468,756.25
  5. Step 5: Solve for x
    x = 163,360,415,468,756.25/8,680,720.50
  6. Step 6: Final answer
    x = 18,818,762.28

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.