Home / 368,983,985.23-553,858,942.20-213,840,912.25

Finding the Fourth Proportional to 368,983,985.23, 553,858,942.20 and 213,840,912.25

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Solution

The fourth proportional to 368,983,985.23, 553,858,942.20 and 213,840,912.25 is: 320,983,311.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,983,985.23 : 553,858,942.20 = 213,840,912.25 : x
  2. Step 2: Convert to fraction form
    368,983,985.23/553,858,942.20 = 213,840,912.25/x
  3. Step 3: Cross multiply
    368,983,985.23x = 553,858,942.20 × 213,840,912.25
  4. Step 4: Simplify right side
    368,983,985.23x = 118,437,701,457,868,032
  5. Step 5: Solve for x
    x = 118,437,701,457,868,032/368,983,985.23
  6. Step 6: Final answer
    x = 320,983,311.47

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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.