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Finding the Third Proportional to 7,120,440 and 11,018,562

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Solution

The third proportional to 7,120,440 and 11,018,562 is: 17,050,731.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120,440 : 11,018,562 = 11,018,562 : x
  2. Step 2: Convert to fraction form
    7,120,440/11,018,562 = 11,018,562/x
  3. Step 3: Cross multiply
    7,120,440x = 11,018,562 × 11,018,562
  4. Step 4: Simplify right side
    7,120,440x = 121,408,708,547,844
  5. Step 5: Solve for x
    x = 121,408,708,547,844/7,120,440
  6. Step 6: Final answer
    x = 17,050,731.21

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.