Home / 142,390,821.21-213,594,453.63-54,952,791.93

Finding the Fourth Proportional to 142,390,821.21, 213,594,453.63 and 54,952,791.93

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Solution

The fourth proportional to 142,390,821.21, 213,594,453.63 and 54,952,791.93 is: 82,432,360.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,390,821.21 : 213,594,453.63 = 54,952,791.93 : x
  2. Step 2: Convert to fraction form
    142,390,821.21/213,594,453.63 = 54,952,791.93/x
  3. Step 3: Cross multiply
    142,390,821.21x = 213,594,453.63 × 54,952,791.93
  4. Step 4: Simplify right side
    142,390,821.21x = 11,737,611,567,731,422
  5. Step 5: Solve for x
    x = 11,737,611,567,731,422/142,390,821.21
  6. Step 6: Final answer
    x = 82,432,360.94

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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.