Home / 401,339,999.90-601,865,424.57-138,953,311.76

Finding the Fourth Proportional to 401,339,999.90, 601,865,424.57 and 138,953,311.76

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Solution

The fourth proportional to 401,339,999.90, 601,865,424.57 and 138,953,311.76 is: 208,379,912.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,339,999.90 : 601,865,424.57 = 138,953,311.76 : x
  2. Step 2: Convert to fraction form
    401,339,999.90/601,865,424.57 = 138,953,311.76/x
  3. Step 3: Cross multiply
    401,339,999.90x = 601,865,424.57 × 138,953,311.76
  4. Step 4: Simplify right side
    401,339,999.90x = 83,631,193,977,839,968
  5. Step 5: Solve for x
    x = 83,631,193,977,839,968/401,339,999.90
  6. Step 6: Final answer
    x = 208,379,912.29

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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.