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Finding the Third Proportional to 163,538,147.25 and 358,851,690

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Solution

The third proportional to 163,538,147.25 and 358,851,690 is: 787,428,117.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,538,147.25 : 358,851,690 = 358,851,690 : x
  2. Step 2: Convert to fraction form
    163,538,147.25/358,851,690 = 358,851,690/x
  3. Step 3: Cross multiply
    163,538,147.25x = 358,851,690 × 358,851,690
  4. Step 4: Simplify right side
    163,538,147.25x = 128,774,535,415,856,096
  5. Step 5: Solve for x
    x = 128,774,535,415,856,096/163,538,147.25
  6. Step 6: Final answer
    x = 787,428,117.42

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.