Home / 290,316,843.52-400,636,542.63-158,158,926.03

Finding the Fourth Proportional to 290,316,843.52, 400,636,542.63 and 158,158,926.03

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Solution

The fourth proportional to 290,316,843.52, 400,636,542.63 and 158,158,926.03 is: 218,258,935.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,316,843.52 : 400,636,542.63 = 158,158,926.03 : x
  2. Step 2: Convert to fraction form
    290,316,843.52/400,636,542.63 = 158,158,926.03/x
  3. Step 3: Cross multiply
    290,316,843.52x = 400,636,542.63 × 158,158,926.03
  4. Step 4: Simplify right side
    290,316,843.52x = 63,364,245,310,733,112
  5. Step 5: Solve for x
    x = 63,364,245,310,733,112/290,316,843.52
  6. Step 6: Final answer
    x = 218,258,935.80

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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.