Home / 20,927,224.59-28,879,581.87-12,107,913.81

Finding the Fourth Proportional to 20,927,224.59, 28,879,581.87 and 12,107,913.81

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Solution

The fourth proportional to 20,927,224.59, 28,879,581.87 and 12,107,913.81 is: 16,708,927.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,927,224.59 : 28,879,581.87 = 12,107,913.81 : x
  2. Step 2: Convert to fraction form
    20,927,224.59/28,879,581.87 = 12,107,913.81/x
  3. Step 3: Cross multiply
    20,927,224.59x = 28,879,581.87 × 12,107,913.81
  4. Step 4: Simplify right side
    20,927,224.59x = 349,671,488,150,798.62
  5. Step 5: Solve for x
    x = 349,671,488,150,798.62/20,927,224.59
  6. Step 6: Final answer
    x = 16,708,927.96

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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.