Home / 401,186,936.52-553,403,409.72-252,272,376.36

Finding the Fourth Proportional to 401,186,936.52, 553,403,409.72 and 252,272,376.36

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Solution

The fourth proportional to 401,186,936.52, 553,403,409.72 and 252,272,376.36 is: 347,988,382.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,186,936.52 : 553,403,409.72 = 252,272,376.36 : x
  2. Step 2: Convert to fraction form
    401,186,936.52/553,403,409.72 = 252,272,376.36/x
  3. Step 3: Cross multiply
    401,186,936.52x = 553,403,409.72 × 252,272,376.36
  4. Step 4: Simplify right side
    401,186,936.52x = 139,608,393,255,791,136
  5. Step 5: Solve for x
    x = 139,608,393,255,791,136/401,186,936.52
  6. Step 6: Final answer
    x = 347,988,382.84

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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.