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Finding the Third Proportional to 5,430,431 and 8,051,679

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Solution

The third proportional to 5,430,431 and 8,051,679 is: 11,938,193.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430,431 : 8,051,679 = 8,051,679 : x
  2. Step 2: Convert to fraction form
    5,430,431/8,051,679 = 8,051,679/x
  3. Step 3: Cross multiply
    5,430,431x = 8,051,679 × 8,051,679
  4. Step 4: Simplify right side
    5,430,431x = 64,829,534,719,041
  5. Step 5: Solve for x
    x = 64,829,534,719,041/5,430,431
  6. Step 6: Final answer
    x = 11,938,193.25

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.