Home / 121,802,421.66-287,441,351.16

Finding the Third Proportional to 121,802,421.66 and 287,441,351.16

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Solution

The third proportional to 121,802,421.66 and 287,441,351.16 is: 678,332,411.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,802,421.66 : 287,441,351.16 = 287,441,351.16 : x
  2. Step 2: Convert to fraction form
    121,802,421.66/287,441,351.16 = 287,441,351.16/x
  3. Step 3: Cross multiply
    121,802,421.66x = 287,441,351.16 × 287,441,351.16
  4. Step 4: Simplify right side
    121,802,421.66x = 82,622,530,354,530,624
  5. Step 5: Solve for x
    x = 82,622,530,354,530,624/121,802,421.66
  6. Step 6: Final answer
    x = 678,332,411.06

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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.