Home / 145,159,052.40-217,738,578.60-130,378,431.60

Finding the Fourth Proportional to 145,159,052.40, 217,738,578.60 and 130,378,431.60

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Solution

The fourth proportional to 145,159,052.40, 217,738,578.60 and 130,378,431.60 is: 195,567,647.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,159,052.40 : 217,738,578.60 = 130,378,431.60 : x
  2. Step 2: Convert to fraction form
    145,159,052.40/217,738,578.60 = 130,378,431.60/x
  3. Step 3: Cross multiply
    145,159,052.40x = 217,738,578.60 × 130,378,431.60
  4. Step 4: Simplify right side
    145,159,052.40x = 28,388,414,376,681,320
  5. Step 5: Solve for x
    x = 28,388,414,376,681,320/145,159,052.40
  6. Step 6: Final answer
    x = 195,567,647.40

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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.