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Finding the Third Proportional to 121,802,421 and 287,441,349.38

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Solution

The third proportional to 121,802,421 and 287,441,349.38 is: 678,332,406.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,802,421 : 287,441,349.38 = 287,441,349.38 : x
  2. Step 2: Convert to fraction form
    121,802,421/287,441,349.38 = 287,441,349.38/x
  3. Step 3: Cross multiply
    121,802,421x = 287,441,349.38 × 287,441,349.38
  4. Step 4: Simplify right side
    121,802,421x = 82,622,529,330,520,816
  5. Step 5: Solve for x
    x = 82,622,529,330,520,816/121,802,421
  6. Step 6: Final answer
    x = 678,332,406.30

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.