Home / 324,769,678.80-487,154,518.20-82,432,582.80

Finding the Fourth Proportional to 324,769,678.80, 487,154,518.20 and 82,432,582.80

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Solution

The fourth proportional to 324,769,678.80, 487,154,518.20 and 82,432,582.80 is: 123,648,874.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,769,678.80 : 487,154,518.20 = 82,432,582.80 : x
  2. Step 2: Convert to fraction form
    324,769,678.80/487,154,518.20 = 82,432,582.80/x
  3. Step 3: Cross multiply
    324,769,678.80x = 487,154,518.20 × 82,432,582.80
  4. Step 4: Simplify right side
    324,769,678.80x = 40,157,405,157,915,608
  5. Step 5: Solve for x
    x = 40,157,405,157,915,608/324,769,678.80
  6. Step 6: Final answer
    x = 123,648,874.20

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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.