Home / 19,131,464.12-28,688,559.35-5,481,485.87

Finding the Fourth Proportional to 19,131,464.12, 28,688,559.35 and 5,481,485.87

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Solution

The fourth proportional to 19,131,464.12, 28,688,559.35 and 5,481,485.87 is: 8,219,754.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,131,464.12 : 28,688,559.35 = 5,481,485.87 : x
  2. Step 2: Convert to fraction form
    19,131,464.12/28,688,559.35 = 5,481,485.87/x
  3. Step 3: Cross multiply
    19,131,464.12x = 28,688,559.35 × 5,481,485.87
  4. Step 4: Simplify right side
    19,131,464.12x = 157,255,932,536,831.16
  5. Step 5: Solve for x
    x = 157,255,932,536,831.16/19,131,464.12
  6. Step 6: Final answer
    x = 8,219,754.20

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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.