Home / 285,122,500.32-393,469,211.88-154,742,308.32

Finding the Fourth Proportional to 285,122,500.32, 393,469,211.88 and 154,742,308.32

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Solution

The fourth proportional to 285,122,500.32, 393,469,211.88 and 154,742,308.32 is: 213,544,473.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,122,500.32 : 393,469,211.88 = 154,742,308.32 : x
  2. Step 2: Convert to fraction form
    285,122,500.32/393,469,211.88 = 154,742,308.32/x
  3. Step 3: Cross multiply
    285,122,500.32x = 393,469,211.88 × 154,742,308.32
  4. Step 4: Simplify right side
    285,122,500.32x = 60,886,334,099,162,360
  5. Step 5: Solve for x
    x = 60,886,334,099,162,360/285,122,500.32
  6. Step 6: Final answer
    x = 213,544,473.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.