Home / 101,570,540.79-152,097,171.69-66,921,897.78

Finding the Fourth Proportional to 101,570,540.79, 152,097,171.69 and 66,921,897.78

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Solution

The fourth proportional to 101,570,540.79, 152,097,171.69 and 66,921,897.78 is: 100,212,436.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,570,540.79 : 152,097,171.69 = 66,921,897.78 : x
  2. Step 2: Convert to fraction form
    101,570,540.79/152,097,171.69 = 66,921,897.78/x
  3. Step 3: Cross multiply
    101,570,540.79x = 152,097,171.69 × 66,921,897.78
  4. Step 4: Simplify right side
    101,570,540.79x = 10,178,631,376,465,290
  5. Step 5: Solve for x
    x = 10,178,631,376,465,290/101,570,540.79
  6. Step 6: Final answer
    x = 100,212,436.57

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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.