Home / 20,551,804.37-28,361,480.16-12,291,866.51

Finding the Fourth Proportional to 20,551,804.37, 28,361,480.16 and 12,291,866.51

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Solution

The fourth proportional to 20,551,804.37, 28,361,480.16 and 12,291,866.51 is: 16,962,769.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,551,804.37 : 28,361,480.16 = 12,291,866.51 : x
  2. Step 2: Convert to fraction form
    20,551,804.37/28,361,480.16 = 12,291,866.51/x
  3. Step 3: Cross multiply
    20,551,804.37x = 28,361,480.16 × 12,291,866.51
  4. Step 4: Simplify right side
    20,551,804.37x = 348,615,528,152,733.44
  5. Step 5: Solve for x
    x = 348,615,528,152,733.44/20,551,804.37
  6. Step 6: Final answer
    x = 16,962,769.88

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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.