Home / 155,405,046.63-214,459,649.33-85,790,999.55

Finding the Fourth Proportional to 155,405,046.63, 214,459,649.33 and 85,790,999.55

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Solution

The fourth proportional to 155,405,046.63, 214,459,649.33 and 85,790,999.55 is: 118,391,957.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,405,046.63 : 214,459,649.33 = 85,790,999.55 : x
  2. Step 2: Convert to fraction form
    155,405,046.63/214,459,649.33 = 85,790,999.55/x
  3. Step 3: Cross multiply
    155,405,046.63x = 214,459,649.33 × 85,790,999.55
  4. Step 4: Simplify right side
    155,405,046.63x = 18,398,707,679,163,188
  5. Step 5: Solve for x
    x = 18,398,707,679,163,188/155,405,046.63
  6. Step 6: Final answer
    x = 118,391,957.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.