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Finding the Third Proportional to 388,560,972.38 and 634,417,928.44

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Solution

The third proportional to 388,560,972.38 and 634,417,928.44 is: 1,035,837,710.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,560,972.38 : 634,417,928.44 = 634,417,928.44 : x
  2. Step 2: Convert to fraction form
    388,560,972.38/634,417,928.44 = 634,417,928.44/x
  3. Step 3: Cross multiply
    388,560,972.38x = 634,417,928.44 × 634,417,928.44
  4. Step 4: Simplify right side
    388,560,972.38x = 402,486,107,922,928,896
  5. Step 5: Solve for x
    x = 402,486,107,922,928,896/388,560,972.38
  6. Step 6: Final answer
    x = 1,035,837,710.26

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.