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Finding the Third Proportional to 130,959,312 and 285,169,170

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Solution

The third proportional to 130,959,312 and 285,169,170 is: 620,967,339.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,959,312 : 285,169,170 = 285,169,170 : x
  2. Step 2: Convert to fraction form
    130,959,312/285,169,170 = 285,169,170/x
  3. Step 3: Cross multiply
    130,959,312x = 285,169,170 × 285,169,170
  4. Step 4: Simplify right side
    130,959,312x = 81,321,455,518,488,896
  5. Step 5: Solve for x
    x = 81,321,455,518,488,896/130,959,312
  6. Step 6: Final answer
    x = 620,967,339.22

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.