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Finding the Third Proportional to 151,628,732 and 216,681,402

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Solution

The third proportional to 151,628,732 and 216,681,402 is: 309,643,359.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,628,732 : 216,681,402 = 216,681,402 : x
  2. Step 2: Convert to fraction form
    151,628,732/216,681,402 = 216,681,402/x
  3. Step 3: Cross multiply
    151,628,732x = 216,681,402 × 216,681,402
  4. Step 4: Simplify right side
    151,628,732x = 46,950,829,972,685,600
  5. Step 5: Solve for x
    x = 46,950,829,972,685,600/151,628,732
  6. Step 6: Final answer
    x = 309,643,359.50

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.