Home / 131,147,107.40-196,720,661.10-40,258,886.60

Finding the Fourth Proportional to 131,147,107.40, 196,720,661.10 and 40,258,886.60

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Solution

The fourth proportional to 131,147,107.40, 196,720,661.10 and 40,258,886.60 is: 60,388,329.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,147,107.40 : 196,720,661.10 = 40,258,886.60 : x
  2. Step 2: Convert to fraction form
    131,147,107.40/196,720,661.10 = 40,258,886.60/x
  3. Step 3: Cross multiply
    131,147,107.40x = 196,720,661.10 × 40,258,886.60
  4. Step 4: Simplify right side
    131,147,107.40x = 7,919,754,787,101,931
  5. Step 5: Solve for x
    x = 7,919,754,787,101,931/131,147,107.40
  6. Step 6: Final answer
    x = 60,388,329.90

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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.