Home / 870,074,199.32-1,305,098,492.54-215,025,189.57

Finding the Fourth Proportional to 870,074,199.32, 1,305,098,492.54 and 215,025,189.57

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Solution

The fourth proportional to 870,074,199.32, 1,305,098,492.54 and 215,025,189.57 is: 322,534,619.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,074,199.32 : 1,305,098,492.54 = 215,025,189.57 : x
  2. Step 2: Convert to fraction form
    870,074,199.32/1,305,098,492.54 = 215,025,189.57/x
  3. Step 3: Cross multiply
    870,074,199.32x = 1,305,098,492.54 × 215,025,189.57
  4. Step 4: Simplify right side
    870,074,199.32x = 280,629,050,764,859,616
  5. Step 5: Solve for x
    x = 280,629,050,764,859,616/870,074,199.32
  6. Step 6: Final answer
    x = 322,534,619.44

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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.