Home / 213,845,529.86-320,903,235.42-91,023,649.95

Finding the Fourth Proportional to 213,845,529.86, 320,903,235.42 and 91,023,649.95

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Solution

The fourth proportional to 213,845,529.86, 320,903,235.42 and 91,023,649.95 is: 136,592,912.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,845,529.86 : 320,903,235.42 = 91,023,649.95 : x
  2. Step 2: Convert to fraction form
    213,845,529.86/320,903,235.42 = 91,023,649.95/x
  3. Step 3: Cross multiply
    213,845,529.86x = 320,903,235.42 × 91,023,649.95
  4. Step 4: Simplify right side
    213,845,529.86x = 29,209,783,768,692,524
  5. Step 5: Solve for x
    x = 29,209,783,768,692,524/213,845,529.86
  6. Step 6: Final answer
    x = 136,592,912.59

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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.