Home / 66,881,271.20-100,321,906.80-38,183,457.20

Finding the Fourth Proportional to 66,881,271.20, 100,321,906.80 and 38,183,457.20

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Solution

The fourth proportional to 66,881,271.20, 100,321,906.80 and 38,183,457.20 is: 57,275,185.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,881,271.20 : 100,321,906.80 = 38,183,457.20 : x
  2. Step 2: Convert to fraction form
    66,881,271.20/100,321,906.80 = 38,183,457.20/x
  3. Step 3: Cross multiply
    66,881,271.20x = 100,321,906.80 × 38,183,457.20
  4. Step 4: Simplify right side
    66,881,271.20x = 3,830,637,234,520,189
  5. Step 5: Solve for x
    x = 3,830,637,234,520,189/66,881,271.20
  6. Step 6: Final answer
    x = 57,275,185.80

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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.