Home / 72,601,687.20-108,587,602.80-64,980,429.60

Finding the Fourth Proportional to 72,601,687.20, 108,587,602.80 and 64,980,429.60

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Solution

The fourth proportional to 72,601,687.20, 108,587,602.80 and 64,980,429.60 is: 97,188,775.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,601,687.20 : 108,587,602.80 = 64,980,429.60 : x
  2. Step 2: Convert to fraction form
    72,601,687.20/108,587,602.80 = 64,980,429.60/x
  3. Step 3: Cross multiply
    72,601,687.20x = 108,587,602.80 × 64,980,429.60
  4. Step 4: Simplify right side
    72,601,687.20x = 7,056,069,079,178,163
  5. Step 5: Solve for x
    x = 7,056,069,079,178,163/72,601,687.20
  6. Step 6: Final answer
    x = 97,188,775.51

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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.