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Finding the Third Proportional to 388,560,962.25 and 634,417,913.25

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Solution

The third proportional to 388,560,962.25 and 634,417,913.25 is: 1,035,837,687.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,560,962.25 : 634,417,913.25 = 634,417,913.25 : x
  2. Step 2: Convert to fraction form
    388,560,962.25/634,417,913.25 = 634,417,913.25/x
  3. Step 3: Cross multiply
    388,560,962.25x = 634,417,913.25 × 634,417,913.25
  4. Step 4: Simplify right side
    388,560,962.25x = 402,486,088,652,484,544
  5. Step 5: Solve for x
    x = 402,486,088,652,484,544/388,560,962.25
  6. Step 6: Final answer
    x = 1,035,837,687.66

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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.