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Finding the Fourth Proportional to 612,036,300.70, 918,054,451.05 and 367,148,287.90

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Solution

The fourth proportional to 612,036,300.70, 918,054,451.05 and 367,148,287.90 is: 550,722,431.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,036,300.70 : 918,054,451.05 = 367,148,287.90 : x
  2. Step 2: Convert to fraction form
    612,036,300.70/918,054,451.05 = 367,148,287.90/x
  3. Step 3: Cross multiply
    612,036,300.70x = 918,054,451.05 × 367,148,287.90
  4. Step 4: Simplify right side
    612,036,300.70x = 337,062,119,901,981,824
  5. Step 5: Solve for x
    x = 337,062,119,901,981,824/612,036,300.70
  6. Step 6: Final answer
    x = 550,722,431.85

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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.