Home / 387,994,574.38-535,352,583.86-222,950,257.42

Finding the Fourth Proportional to 387,994,574.38, 535,352,583.86 and 222,950,257.42

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Solution

The fourth proportional to 387,994,574.38, 535,352,583.86 and 222,950,257.42 is: 307,625,426.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,994,574.38 : 535,352,583.86 = 222,950,257.42 : x
  2. Step 2: Convert to fraction form
    387,994,574.38/535,352,583.86 = 222,950,257.42/x
  3. Step 3: Cross multiply
    387,994,574.38x = 535,352,583.86 × 222,950,257.42
  4. Step 4: Simplify right side
    387,994,574.38x = 119,356,996,382,049,136
  5. Step 5: Solve for x
    x = 119,356,996,382,049,136/387,994,574.38
  6. Step 6: Final answer
    x = 307,625,426.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.