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Finding the Third Proportional to 287,878,808 and 626,871,856

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Solution

The third proportional to 287,878,808 and 626,871,856 is: 1,365,047,766.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,878,808 : 626,871,856 = 626,871,856 : x
  2. Step 2: Convert to fraction form
    287,878,808/626,871,856 = 626,871,856/x
  3. Step 3: Cross multiply
    287,878,808x = 626,871,856 × 626,871,856
  4. Step 4: Simplify right side
    287,878,808x = 392,968,323,844,884,736
  5. Step 5: Solve for x
    x = 392,968,323,844,884,736/287,878,808
  6. Step 6: Final answer
    x = 1,365,047,766.37

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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.