Home / 43,478,128.44-65,227,870.74-21,628,817.46

Finding the Fourth Proportional to 43,478,128.44, 65,227,870.74 and 21,628,817.46

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Solution

The fourth proportional to 43,478,128.44, 65,227,870.74 and 21,628,817.46 is: 32,448,538.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,478,128.44 : 65,227,870.74 = 21,628,817.46 : x
  2. Step 2: Convert to fraction form
    43,478,128.44/65,227,870.74 = 21,628,817.46/x
  3. Step 3: Cross multiply
    43,478,128.44x = 65,227,870.74 × 21,628,817.46
  4. Step 4: Simplify right side
    43,478,128.44x = 1,410,801,709,539,935.25
  5. Step 5: Solve for x
    x = 1,410,801,709,539,935.25/43,478,128.44
  6. Step 6: Final answer
    x = 32,448,538.15

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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.