Home / 213,867,905.76-320,750,493.12-98,741,834.64

Finding the Fourth Proportional to 213,867,905.76, 320,750,493.12 and 98,741,834.64

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Solution

The fourth proportional to 213,867,905.76, 320,750,493.12 and 98,741,834.64 is: 148,089,036.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,867,905.76 : 320,750,493.12 = 98,741,834.64 : x
  2. Step 2: Convert to fraction form
    213,867,905.76/320,750,493.12 = 98,741,834.64/x
  3. Step 3: Cross multiply
    213,867,905.76x = 320,750,493.12 × 98,741,834.64
  4. Step 4: Simplify right side
    213,867,905.76x = 31,671,492,152,353,500
  5. Step 5: Solve for x
    x = 31,671,492,152,353,500/213,867,905.76
  6. Step 6: Final answer
    x = 148,089,036.73

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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.