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Finding the Fourth Proportional to 400,993,295.60, 601,405,962.60 and 196,668,009.20

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Solution

The fourth proportional to 400,993,295.60, 601,405,962.60 and 196,668,009.20 is: 294,960,825.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,993,295.60 : 601,405,962.60 = 196,668,009.20 : x
  2. Step 2: Convert to fraction form
    400,993,295.60/601,405,962.60 = 196,668,009.20/x
  3. Step 3: Cross multiply
    400,993,295.60x = 601,405,962.60 × 196,668,009.20
  4. Step 4: Simplify right side
    400,993,295.60x = 118,277,313,385,551,648
  5. Step 5: Solve for x
    x = 118,277,313,385,551,648/400,993,295.60
  6. Step 6: Final answer
    x = 294,960,825.24

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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.