Home / 290,448,053.08-400,818,376.38-158,289,080.92

Finding the Fourth Proportional to 290,448,053.08, 400,818,376.38 and 158,289,080.92

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Solution

The fourth proportional to 290,448,053.08, 400,818,376.38 and 158,289,080.92 is: 218,438,966.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,448,053.08 : 400,818,376.38 = 158,289,080.92 : x
  2. Step 2: Convert to fraction form
    290,448,053.08/400,818,376.38 = 158,289,080.92/x
  3. Step 3: Cross multiply
    290,448,053.08x = 400,818,376.38 × 158,289,080.92
  4. Step 4: Simplify right side
    290,448,053.08x = 63,445,172,413,036,832
  5. Step 5: Solve for x
    x = 63,445,172,413,036,832/290,448,053.08
  6. Step 6: Final answer
    x = 218,438,966.07

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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.