Home / 120,515,999.60-180,773,999.40-29,639,588.60

Finding the Fourth Proportional to 120,515,999.60, 180,773,999.40 and 29,639,588.60

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Solution

The fourth proportional to 120,515,999.60, 180,773,999.40 and 29,639,588.60 is: 44,459,382.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,515,999.60 : 180,773,999.40 = 29,639,588.60 : x
  2. Step 2: Convert to fraction form
    120,515,999.60/180,773,999.40 = 29,639,588.60/x
  3. Step 3: Cross multiply
    120,515,999.60x = 180,773,999.40 × 29,639,588.60
  4. Step 4: Simplify right side
    120,515,999.60x = 5,358,066,971,792,647
  5. Step 5: Solve for x
    x = 5,358,066,971,792,647/120,515,999.60
  6. Step 6: Final answer
    x = 44,459,382.90

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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.