Home / 420,270,446.80-630,405,670.20-133,056,110.80

Finding the Fourth Proportional to 420,270,446.80, 630,405,670.20 and 133,056,110.80

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Solution

The fourth proportional to 420,270,446.80, 630,405,670.20 and 133,056,110.80 is: 199,584,166.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,270,446.80 : 630,405,670.20 = 133,056,110.80 : x
  2. Step 2: Convert to fraction form
    420,270,446.80/630,405,670.20 = 133,056,110.80/x
  3. Step 3: Cross multiply
    420,270,446.80x = 630,405,670.20 × 133,056,110.80
  4. Step 4: Simplify right side
    420,270,446.80x = 83,879,326,703,079,456
  5. Step 5: Solve for x
    x = 83,879,326,703,079,456/420,270,446.80
  6. Step 6: Final answer
    x = 199,584,166.20

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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.