Home / 66,784,143.72-100,171,316.72-21,333,734.76

Finding the Fourth Proportional to 66,784,143.72, 100,171,316.72 and 21,333,734.76

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Solution

The fourth proportional to 66,784,143.72, 100,171,316.72 and 21,333,734.76 is: 31,999,037.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,784,143.72 : 100,171,316.72 = 21,333,734.76 : x
  2. Step 2: Convert to fraction form
    66,784,143.72/100,171,316.72 = 21,333,734.76/x
  3. Step 3: Cross multiply
    66,784,143.72x = 100,171,316.72 × 21,333,734.76
  4. Step 4: Simplify right side
    66,784,143.72x = 2,137,028,301,464,433.25
  5. Step 5: Solve for x
    x = 2,137,028,301,464,433.25/66,784,143.72
  6. Step 6: Final answer
    x = 31,999,037.23

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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.