Home / 290,177,251.61-400,444,632.43-158,018,208.62

Finding the Fourth Proportional to 290,177,251.61, 400,444,632.43 and 158,018,208.62

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Solution

The fourth proportional to 290,177,251.61, 400,444,632.43 and 158,018,208.62 is: 218,065,141.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,177,251.61 : 400,444,632.43 = 158,018,208.62 : x
  2. Step 2: Convert to fraction form
    290,177,251.61/400,444,632.43 = 158,018,208.62/x
  3. Step 3: Cross multiply
    290,177,251.61x = 400,444,632.43 × 158,018,208.62
  4. Step 4: Simplify right side
    290,177,251.61x = 63,277,543,465,685,696
  5. Step 5: Solve for x
    x = 63,277,543,465,685,696/290,177,251.61
  6. Step 6: Final answer
    x = 218,065,141.62

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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.