Home / 72,484,858.80-108,727,288.20-69,125,626.80

Finding the Fourth Proportional to 72,484,858.80, 108,727,288.20 and 69,125,626.80

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Solution

The fourth proportional to 72,484,858.80, 108,727,288.20 and 69,125,626.80 is: 103,688,440.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,484,858.80 : 108,727,288.20 = 69,125,626.80 : x
  2. Step 2: Convert to fraction form
    72,484,858.80/108,727,288.20 = 69,125,626.80/x
  3. Step 3: Cross multiply
    72,484,858.80x = 108,727,288.20 × 69,125,626.80
  4. Step 4: Simplify right side
    72,484,858.80x = 7,515,841,947,089,244
  5. Step 5: Solve for x
    x = 7,515,841,947,089,244/72,484,858.80
  6. Step 6: Final answer
    x = 103,688,440.20

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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.