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Finding the Third Proportional to 7,120,437 and 11,018,557.50

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Solution

The third proportional to 7,120,437 and 11,018,557.50 is: 17,050,724.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120,437 : 11,018,557.50 = 11,018,557.50 : x
  2. Step 2: Convert to fraction form
    7,120,437/11,018,557.50 = 11,018,557.50/x
  3. Step 3: Cross multiply
    7,120,437x = 11,018,557.50 × 11,018,557.50
  4. Step 4: Simplify right side
    7,120,437x = 121,408,609,380,806.25
  5. Step 5: Solve for x
    x = 121,408,609,380,806.25/7,120,437
  6. Step 6: Final answer
    x = 17,050,724.47

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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.