Home / 401,339,999.40-601,865,423.82-138,953,311.26

Finding the Fourth Proportional to 401,339,999.40, 601,865,423.82 and 138,953,311.26

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Solution

The fourth proportional to 401,339,999.40, 601,865,423.82 and 138,953,311.26 is: 208,379,911.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,339,999.40 : 601,865,423.82 = 138,953,311.26 : x
  2. Step 2: Convert to fraction form
    401,339,999.40/601,865,423.82 = 138,953,311.26/x
  3. Step 3: Cross multiply
    401,339,999.40x = 601,865,423.82 × 138,953,311.26
  4. Step 4: Simplify right side
    401,339,999.40x = 83,631,193,572,692,272
  5. Step 5: Solve for x
    x = 83,631,193,572,692,272/401,339,999.40
  6. Step 6: Final answer
    x = 208,379,911.54

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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.