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Finding the Third Proportional to 5,137,854 and 8,000,865

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Solution

The third proportional to 5,137,854 and 8,000,865 is: 12,459,256.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137,854 : 8,000,865 = 8,000,865 : x
  2. Step 2: Convert to fraction form
    5,137,854/8,000,865 = 8,000,865/x
  3. Step 3: Cross multiply
    5,137,854x = 8,000,865 × 8,000,865
  4. Step 4: Simplify right side
    5,137,854x = 64,013,840,748,225
  5. Step 5: Solve for x
    x = 64,013,840,748,225/5,137,854
  6. Step 6: Final answer
    x = 12,459,256.48

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.