Home / 406,647,124.80-609,545,534.40-222,130,809.60

Finding the Fourth Proportional to 406,647,124.80, 609,545,534.40 and 222,130,809.60

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Solution

The fourth proportional to 406,647,124.80, 609,545,534.40 and 222,130,809.60 is: 332,963,974.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,647,124.80 : 609,545,534.40 = 222,130,809.60 : x
  2. Step 2: Convert to fraction form
    406,647,124.80/609,545,534.40 = 222,130,809.60/x
  3. Step 3: Cross multiply
    406,647,124.80x = 609,545,534.40 × 222,130,809.60
  4. Step 4: Simplify right side
    406,647,124.80x = 135,398,843,044,336,640
  5. Step 5: Solve for x
    x = 135,398,843,044,336,640/406,647,124.80
  6. Step 6: Final answer
    x = 332,963,974.87

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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.