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Finding the Third Proportional to 131,290,192 and 287,288,480

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Solution

The third proportional to 131,290,192 and 287,288,480 is: 628,643,080.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,290,192 : 287,288,480 = 287,288,480 : x
  2. Step 2: Convert to fraction form
    131,290,192/287,288,480 = 287,288,480/x
  3. Step 3: Cross multiply
    131,290,192x = 287,288,480 × 287,288,480
  4. Step 4: Simplify right side
    131,290,192x = 82,534,670,740,710,400
  5. Step 5: Solve for x
    x = 82,534,670,740,710,400/131,290,192
  6. Step 6: Final answer
    x = 628,643,080.52

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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.