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Finding the Third Proportional to 398,383,413 and 624,868,045

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Solution

The third proportional to 398,383,413 and 624,868,045 is: 980,111,272.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,383,413 : 624,868,045 = 624,868,045 : x
  2. Step 2: Convert to fraction form
    398,383,413/624,868,045 = 624,868,045/x
  3. Step 3: Cross multiply
    398,383,413x = 624,868,045 × 624,868,045
  4. Step 4: Simplify right side
    398,383,413x = 390,460,073,662,122,048
  5. Step 5: Solve for x
    x = 390,460,073,662,122,048/398,383,413
  6. Step 6: Final answer
    x = 980,111,272.01

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.