Home / 290,790,972.66-401,290,991.84-158,631,934.26

Finding the Fourth Proportional to 290,790,972.66, 401,290,991.84 and 158,631,934.26

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Solution

The fourth proportional to 290,790,972.66, 401,290,991.84 and 158,631,934.26 is: 218,911,769.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,790,972.66 : 401,290,991.84 = 158,631,934.26 : x
  2. Step 2: Convert to fraction form
    290,790,972.66/401,290,991.84 = 158,631,934.26/x
  3. Step 3: Cross multiply
    290,790,972.66x = 401,290,991.84 × 158,631,934.26
  4. Step 4: Simplify right side
    290,790,972.66x = 63,657,566,236,693,072
  5. Step 5: Solve for x
    x = 63,657,566,236,693,072/290,790,972.66
  6. Step 6: Final answer
    x = 218,911,769.01

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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.