Home / 285,344,613.57-427,290,317.55-188,005,215.42

Finding the Fourth Proportional to 285,344,613.57, 427,290,317.55 and 188,005,215.42

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Solution

The fourth proportional to 285,344,613.57, 427,290,317.55 and 188,005,215.42 is: 281,529,085.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,344,613.57 : 427,290,317.55 = 188,005,215.42 : x
  2. Step 2: Convert to fraction form
    285,344,613.57/427,290,317.55 = 188,005,215.42/x
  3. Step 3: Cross multiply
    285,344,613.57x = 427,290,317.55 × 188,005,215.42
  4. Step 4: Simplify right side
    285,344,613.57x = 80,332,808,197,867,952
  5. Step 5: Solve for x
    x = 80,332,808,197,867,952/285,344,613.57
  6. Step 6: Final answer
    x = 281,529,085.81

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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.