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Finding the Third Proportional to 58,887,668 and 128,692,840

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Solution

The third proportional to 58,887,668 and 128,692,840 is: 281,244,743.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,887,668 : 128,692,840 = 128,692,840 : x
  2. Step 2: Convert to fraction form
    58,887,668/128,692,840 = 128,692,840/x
  3. Step 3: Cross multiply
    58,887,668x = 128,692,840 × 128,692,840
  4. Step 4: Simplify right side
    58,887,668x = 16,561,847,067,265,600
  5. Step 5: Solve for x
    x = 16,561,847,067,265,600/58,887,668
  6. Step 6: Final answer
    x = 281,244,743.25

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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.