Home / 20,628,917.10-28,468,673.88-12,370,323.96

Finding the Fourth Proportional to 20,628,917.10, 28,468,673.88 and 12,370,323.96

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Solution

The fourth proportional to 20,628,917.10, 28,468,673.88 and 12,370,323.96 is: 17,071,507.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,628,917.10 : 28,468,673.88 = 12,370,323.96 : x
  2. Step 2: Convert to fraction form
    20,628,917.10/28,468,673.88 = 12,370,323.96/x
  3. Step 3: Cross multiply
    20,628,917.10x = 28,468,673.88 × 12,370,323.96
  4. Step 4: Simplify right side
    20,628,917.10x = 352,166,718,607,190.19
  5. Step 5: Solve for x
    x = 352,166,718,607,190.19/20,628,917.10
  6. Step 6: Final answer
    x = 17,071,507.77

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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.