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Finding the Third Proportional to 12,779,421 and 28,113,745

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Solution

The third proportional to 12,779,421 and 28,113,745 is: 61,848,080.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,779,421 : 28,113,745 = 28,113,745 : x
  2. Step 2: Convert to fraction form
    12,779,421/28,113,745 = 28,113,745/x
  3. Step 3: Cross multiply
    12,779,421x = 28,113,745 × 28,113,745
  4. Step 4: Simplify right side
    12,779,421x = 790,382,657,925,025
  5. Step 5: Solve for x
    x = 790,382,657,925,025/12,779,421
  6. Step 6: Final answer
    x = 61,848,080.44

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.