Home / 72,583,999.20-108,875,998.80-72,080,114.40

Finding the Fourth Proportional to 72,583,999.20, 108,875,998.80 and 72,080,114.40

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Solution

The fourth proportional to 72,583,999.20, 108,875,998.80 and 72,080,114.40 is: 108,120,171.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,583,999.20 : 108,875,998.80 = 72,080,114.40 : x
  2. Step 2: Convert to fraction form
    72,583,999.20/108,875,998.80 = 72,080,114.40/x
  3. Step 3: Cross multiply
    72,583,999.20x = 108,875,998.80 × 72,080,114.40
  4. Step 4: Simplify right side
    72,583,999.20x = 7,847,794,448,918,263
  5. Step 5: Solve for x
    x = 7,847,794,448,918,263/72,583,999.20
  6. Step 6: Final answer
    x = 108,120,171.60

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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.