Home / 368,983,984.23-553,858,940.70-213,840,911.25

Finding the Fourth Proportional to 368,983,984.23, 553,858,940.70 and 213,840,911.25

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Solution

The fourth proportional to 368,983,984.23, 553,858,940.70 and 213,840,911.25 is: 320,983,309.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,983,984.23 : 553,858,940.70 = 213,840,911.25 : x
  2. Step 2: Convert to fraction form
    368,983,984.23/553,858,940.70 = 213,840,911.25/x
  3. Step 3: Cross multiply
    368,983,984.23x = 553,858,940.70 × 213,840,911.25
  4. Step 4: Simplify right side
    368,983,984.23x = 118,437,700,583,247,728
  5. Step 5: Solve for x
    x = 118,437,700,583,247,728/368,983,984.23
  6. Step 6: Final answer
    x = 320,983,309.97

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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.