Home / 285,164,571.63-393,516,926.87-161,402,591.55

Finding the Fourth Proportional to 285,164,571.63, 393,516,926.87 and 161,402,591.55

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Solution

The fourth proportional to 285,164,571.63, 393,516,926.87 and 161,402,591.55 is: 222,729,813.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,164,571.63 : 393,516,926.87 = 161,402,591.55 : x
  2. Step 2: Convert to fraction form
    285,164,571.63/393,516,926.87 = 161,402,591.55/x
  3. Step 3: Cross multiply
    285,164,571.63x = 393,516,926.87 × 161,402,591.55
  4. Step 4: Simplify right side
    285,164,571.63x = 63,514,651,814,802,824
  5. Step 5: Solve for x
    x = 63,514,651,814,802,824/285,164,571.63
  6. Step 6: Final answer
    x = 222,729,813.36

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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.