Home / 80,456,065,099.30-120,680,085,852.60-30,087,795,875.86

Finding the Fourth Proportional to 80,456,065,099.30, 120,680,085,852.60 and 30,087,795,875.86

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Solution

The fourth proportional to 80,456,065,099.30, 120,680,085,852.60 and 30,087,795,875.86 is: 45,130,193,540.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,456,065,099.30 : 120,680,085,852.60 = 30,087,795,875.86 : x
  2. Step 2: Convert to fraction form
    80,456,065,099.30/120,680,085,852.60 = 30,087,795,875.86/x
  3. Step 3: Cross multiply
    80,456,065,099.30x = 120,680,085,852.60 × 30,087,795,875.86
  4. Step 4: Simplify right side
    80,456,065,099.30x = 3,630,997,789,414,289,047,552
  5. Step 5: Solve for x
    x = 3,630,997,789,414,289,047,552/80,456,065,099.30
  6. Step 6: Final answer
    x = 45,130,193,540.20

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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.