Home / 20,628,902.59-28,468,653.79-12,370,309.45

Finding the Fourth Proportional to 20,628,902.59, 28,468,653.79 and 12,370,309.45

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Solution

The fourth proportional to 20,628,902.59, 28,468,653.79 and 12,370,309.45 is: 17,071,487.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,628,902.59 : 28,468,653.79 = 12,370,309.45 : x
  2. Step 2: Convert to fraction form
    20,628,902.59/28,468,653.79 = 12,370,309.45/x
  3. Step 3: Cross multiply
    20,628,902.59x = 28,468,653.79 × 12,370,309.45
  4. Step 4: Simplify right side
    20,628,902.59x = 352,166,057,007,215.31
  5. Step 5: Solve for x
    x = 352,166,057,007,215.31/20,628,902.59
  6. Step 6: Final answer
    x = 17,071,487.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.