Home / 72,414,259.20-108,621,388.80-43,645,586.40

Finding the Fourth Proportional to 72,414,259.20, 108,621,388.80 and 43,645,586.40

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Solution

The fourth proportional to 72,414,259.20, 108,621,388.80 and 43,645,586.40 is: 65,468,379.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,414,259.20 : 108,621,388.80 = 43,645,586.40 : x
  2. Step 2: Convert to fraction form
    72,414,259.20/108,621,388.80 = 43,645,586.40/x
  3. Step 3: Cross multiply
    72,414,259.20x = 108,621,388.80 × 43,645,586.40
  4. Step 4: Simplify right side
    72,414,259.20x = 4,740,844,209,758,392
  5. Step 5: Solve for x
    x = 4,740,844,209,758,392/72,414,259.20
  6. Step 6: Final answer
    x = 65,468,379.60

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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.