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Finding the Third Proportional to 121,046,782 and 258,922,528

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Solution

The third proportional to 121,046,782 and 258,922,528 is: 553,842,691.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,046,782 : 258,922,528 = 258,922,528 : x
  2. Step 2: Convert to fraction form
    121,046,782/258,922,528 = 258,922,528/x
  3. Step 3: Cross multiply
    121,046,782x = 258,922,528 × 258,922,528
  4. Step 4: Simplify right side
    121,046,782x = 67,040,875,505,910,784
  5. Step 5: Solve for x
    x = 67,040,875,505,910,784/121,046,782
  6. Step 6: Final answer
    x = 553,842,691.22

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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.