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Finding the Third Proportional to 129,283,913 and 279,078,970

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Solution

The third proportional to 129,283,913 and 279,078,970 is: 602,434,360.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,283,913 : 279,078,970 = 279,078,970 : x
  2. Step 2: Convert to fraction form
    129,283,913/279,078,970 = 279,078,970/x
  3. Step 3: Cross multiply
    129,283,913x = 279,078,970 × 279,078,970
  4. Step 4: Simplify right side
    129,283,913x = 77,885,071,496,260,896
  5. Step 5: Solve for x
    x = 77,885,071,496,260,896/129,283,913
  6. Step 6: Final answer
    x = 602,434,360.85

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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.