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Finding the Third Proportional to 287,892,366 and 621,658,374

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Solution

The third proportional to 287,892,366 and 621,658,374 is: 1,342,373,677.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,892,366 : 621,658,374 = 621,658,374 : x
  2. Step 2: Convert to fraction form
    287,892,366/621,658,374 = 621,658,374/x
  3. Step 3: Cross multiply
    287,892,366x = 621,658,374 × 621,658,374
  4. Step 4: Simplify right side
    287,892,366x = 386,459,133,964,323,904
  5. Step 5: Solve for x
    x = 386,459,133,964,323,904/287,892,366
  6. Step 6: Final answer
    x = 1,342,373,677.13

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.