Home / 210,769,981.53-290,893,013.74-121,444,824.37

Finding the Fourth Proportional to 210,769,981.53, 290,893,013.74 and 121,444,824.37

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Solution

The fourth proportional to 210,769,981.53, 290,893,013.74 and 121,444,824.37 is: 167,611,396.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,769,981.53 : 290,893,013.74 = 121,444,824.37 : x
  2. Step 2: Convert to fraction form
    210,769,981.53/290,893,013.74 = 121,444,824.37/x
  3. Step 3: Cross multiply
    210,769,981.53x = 290,893,013.74 × 121,444,824.37
  4. Step 4: Simplify right side
    210,769,981.53x = 35,327,450,962,659,832
  5. Step 5: Solve for x
    x = 35,327,450,962,659,832/210,769,981.53
  6. Step 6: Final answer
    x = 167,611,396.59

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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.