Home / 314,928,311.70-472,392,467.55-142,741,427.70

Finding the Fourth Proportional to 314,928,311.70, 472,392,467.55 and 142,741,427.70

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Solution

The fourth proportional to 314,928,311.70, 472,392,467.55 and 142,741,427.70 is: 214,112,141.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,311.70 : 472,392,467.55 = 142,741,427.70 : x
  2. Step 2: Convert to fraction form
    314,928,311.70/472,392,467.55 = 142,741,427.70/x
  3. Step 3: Cross multiply
    314,928,311.70x = 472,392,467.55 × 142,741,427.70
  4. Step 4: Simplify right side
    314,928,311.70x = 67,429,975,252,812,920
  5. Step 5: Solve for x
    x = 67,429,975,252,812,920/314,928,311.70
  6. Step 6: Final answer
    x = 214,112,141.55

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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.