Home / 802,019,919.60-1,203,029,879.40-526,520,905.20

Finding the Fourth Proportional to 802,019,919.60, 1,203,029,879.40 and 526,520,905.20

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Solution

The fourth proportional to 802,019,919.60, 1,203,029,879.40 and 526,520,905.20 is: 789,781,357.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,019,919.60 : 1,203,029,879.40 = 526,520,905.20 : x
  2. Step 2: Convert to fraction form
    802,019,919.60/1,203,029,879.40 = 526,520,905.20/x
  3. Step 3: Cross multiply
    802,019,919.60x = 1,203,029,879.40 × 526,520,905.20
  4. Step 4: Simplify right side
    802,019,919.60x = 633,420,381,084,334,848
  5. Step 5: Solve for x
    x = 633,420,381,084,334,848/802,019,919.60
  6. Step 6: Final answer
    x = 789,781,357.80

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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.