Home / 72,414,004.80-108,621,007.20-69,054,772.80

Finding the Fourth Proportional to 72,414,004.80, 108,621,007.20 and 69,054,772.80

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Solution

The fourth proportional to 72,414,004.80, 108,621,007.20 and 69,054,772.80 is: 103,582,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,414,004.80 : 108,621,007.20 = 69,054,772.80 : x
  2. Step 2: Convert to fraction form
    72,414,004.80/108,621,007.20 = 69,054,772.80/x
  3. Step 3: Cross multiply
    72,414,004.80x = 108,621,007.20 × 69,054,772.80
  4. Step 4: Simplify right side
    72,414,004.80x = 7,500,798,973,503,164
  5. Step 5: Solve for x
    x = 7,500,798,973,503,164/72,414,004.80
  6. Step 6: Final answer
    x = 103,582,159.20

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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.