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Finding the Third Proportional to 51,780,021 and 111,630,015

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Solution

The third proportional to 51,780,021 and 111,630,015 is: 240,657,690.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,780,021 : 111,630,015 = 111,630,015 : x
  2. Step 2: Convert to fraction form
    51,780,021/111,630,015 = 111,630,015/x
  3. Step 3: Cross multiply
    51,780,021x = 111,630,015 × 111,630,015
  4. Step 4: Simplify right side
    51,780,021x = 12,461,260,248,900,224
  5. Step 5: Solve for x
    x = 12,461,260,248,900,224/51,780,021
  6. Step 6: Final answer
    x = 240,657,690.13

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.