Home / 1,245,517,824.60-1,868,276,736.90-786,870,682.20

Finding the Fourth Proportional to 1,245,517,824.60, 1,868,276,736.90 and 786,870,682.20

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Solution

The fourth proportional to 1,245,517,824.60, 1,868,276,736.90 and 786,870,682.20 is: 1,180,306,023.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,517,824.60 : 1,868,276,736.90 = 786,870,682.20 : x
  2. Step 2: Convert to fraction form
    1,245,517,824.60/1,868,276,736.90 = 786,870,682.20/x
  3. Step 3: Cross multiply
    1,245,517,824.60x = 1,868,276,736.90 × 786,870,682.20
  4. Step 4: Simplify right side
    1,245,517,824.60x = 1,470,092,190,502,893,056
  5. Step 5: Solve for x
    x = 1,470,092,190,502,893,056/1,245,517,824.60
  6. Step 6: Final answer
    x = 1,180,306,023.30

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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.