Home / 320,542,238.81-478,926,435.94

Finding the Third Proportional to 320,542,238.81 and 478,926,435.94

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Solution

The third proportional to 320,542,238.81 and 478,926,435.94 is: 715,570,378.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,542,238.81 : 478,926,435.94 = 478,926,435.94 : x
  2. Step 2: Convert to fraction form
    320,542,238.81/478,926,435.94 = 478,926,435.94/x
  3. Step 3: Cross multiply
    320,542,238.81x = 478,926,435.94 × 478,926,435.94
  4. Step 4: Simplify right side
    320,542,238.81x = 229,370,531,039,796,288
  5. Step 5: Solve for x
    x = 229,370,531,039,796,288/320,542,238.81
  6. Step 6: Final answer
    x = 715,570,378.15

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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.