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Finding the Third Proportional to 187,389,487 and 279,981,973.50

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Solution

The third proportional to 187,389,487 and 279,981,973.50 is: 418,326,058.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,389,487 : 279,981,973.50 = 279,981,973.50 : x
  2. Step 2: Convert to fraction form
    187,389,487/279,981,973.50 = 279,981,973.50/x
  3. Step 3: Cross multiply
    187,389,487x = 279,981,973.50 × 279,981,973.50
  4. Step 4: Simplify right side
    187,389,487x = 78,389,905,484,954,704
  5. Step 5: Solve for x
    x = 78,389,905,484,954,704/187,389,487
  6. Step 6: Final answer
    x = 418,326,058.41

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.