Home / 18,751,409.70-28,127,114.55-5,288,237.70

Finding the Fourth Proportional to 18,751,409.70, 28,127,114.55 and 5,288,237.70

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Solution

The fourth proportional to 18,751,409.70, 28,127,114.55 and 5,288,237.70 is: 7,932,356.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,751,409.70 : 28,127,114.55 = 5,288,237.70 : x
  2. Step 2: Convert to fraction form
    18,751,409.70/28,127,114.55 = 5,288,237.70/x
  3. Step 3: Cross multiply
    18,751,409.70x = 28,127,114.55 × 5,288,237.70
  4. Step 4: Simplify right side
    18,751,409.70x = 148,742,867,555,528.53
  5. Step 5: Solve for x
    x = 148,742,867,555,528.53/18,751,409.70
  6. Step 6: Final answer
    x = 7,932,356.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.