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Finding the Third Proportional to 402,129,701 and 867,774,255

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Solution

The third proportional to 402,129,701 and 867,774,255 is: 1,872,610,144.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,129,701 : 867,774,255 = 867,774,255 : x
  2. Step 2: Convert to fraction form
    402,129,701/867,774,255 = 867,774,255/x
  3. Step 3: Cross multiply
    402,129,701x = 867,774,255 × 867,774,255
  4. Step 4: Simplify right side
    402,129,701x = 753,032,157,640,804,992
  5. Step 5: Solve for x
    x = 753,032,157,640,804,992/402,129,701
  6. Step 6: Final answer
    x = 1,872,610,144.86

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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.