Home / 193,642,076.40-290,071,204.20-120,634,767.60

Finding the Fourth Proportional to 193,642,076.40, 290,071,204.20 and 120,634,767.60

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Solution

The fourth proportional to 193,642,076.40, 290,071,204.20 and 120,634,767.60 is: 180,707,999.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,642,076.40 : 290,071,204.20 = 120,634,767.60 : x
  2. Step 2: Convert to fraction form
    193,642,076.40/290,071,204.20 = 120,634,767.60/x
  3. Step 3: Cross multiply
    193,642,076.40x = 290,071,204.20 × 120,634,767.60
  4. Step 4: Simplify right side
    193,642,076.40x = 34,992,672,306,119,140
  5. Step 5: Solve for x
    x = 34,992,672,306,119,140/193,642,076.40
  6. Step 6: Final answer
    x = 180,707,999.81

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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.