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Finding the Third Proportional to 36,570,139 and 78,643,958

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Solution

The third proportional to 36,570,139 and 78,643,958 is: 169,123,560.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,570,139 : 78,643,958 = 78,643,958 : x
  2. Step 2: Convert to fraction form
    36,570,139/78,643,958 = 78,643,958/x
  3. Step 3: Cross multiply
    36,570,139x = 78,643,958 × 78,643,958
  4. Step 4: Simplify right side
    36,570,139x = 6,184,872,129,905,764
  5. Step 5: Solve for x
    x = 6,184,872,129,905,764/36,570,139
  6. Step 6: Final answer
    x = 169,123,560.89

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.