Home / 66,784,163.36-100,171,346.15-21,333,754.40

Finding the Fourth Proportional to 66,784,163.36, 100,171,346.15 and 21,333,754.40

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Solution

The fourth proportional to 66,784,163.36, 100,171,346.15 and 21,333,754.40 is: 31,999,066.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,784,163.36 : 100,171,346.15 = 21,333,754.40 : x
  2. Step 2: Convert to fraction form
    66,784,163.36/100,171,346.15 = 21,333,754.40/x
  3. Step 3: Cross multiply
    66,784,163.36x = 100,171,346.15 × 21,333,754.40
  4. Step 4: Simplify right side
    66,784,163.36x = 2,137,030,896,233,963.25
  5. Step 5: Solve for x
    x = 2,137,030,896,233,963.25/66,784,163.36
  6. Step 6: Final answer
    x = 31,999,066.68

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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.