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Finding the Third Proportional to 121,900,836 and 260,333,940

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Solution

The third proportional to 121,900,836 and 260,333,940 is: 555,974,532.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,900,836 : 260,333,940 = 260,333,940 : x
  2. Step 2: Convert to fraction form
    121,900,836/260,333,940 = 260,333,940/x
  3. Step 3: Cross multiply
    121,900,836x = 260,333,940 × 260,333,940
  4. Step 4: Simplify right side
    121,900,836x = 67,773,760,315,923,600
  5. Step 5: Solve for x
    x = 67,773,760,315,923,600/121,900,836
  6. Step 6: Final answer
    x = 555,974,532.58

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.