Home / 72,769,584.20-109,154,376.30-69,899,802.80

Finding the Fourth Proportional to 72,769,584.20, 109,154,376.30 and 69,899,802.80

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Solution

The fourth proportional to 72,769,584.20, 109,154,376.30 and 69,899,802.80 is: 104,849,704.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,769,584.20 : 109,154,376.30 = 69,899,802.80 : x
  2. Step 2: Convert to fraction form
    72,769,584.20/109,154,376.30 = 69,899,802.80/x
  3. Step 3: Cross multiply
    72,769,584.20x = 109,154,376.30 × 69,899,802.80
  4. Step 4: Simplify right side
    72,769,584.20x = 7,629,869,378,126,993
  5. Step 5: Solve for x
    x = 7,629,869,378,126,993/72,769,584.20
  6. Step 6: Final answer
    x = 104,849,704.20

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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.