Home / 210,769,979.34-290,893,010.72-121,444,822.18

Finding the Fourth Proportional to 210,769,979.34, 290,893,010.72 and 121,444,822.18

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Solution

The fourth proportional to 210,769,979.34, 290,893,010.72 and 121,444,822.18 is: 167,611,393.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,769,979.34 : 290,893,010.72 = 121,444,822.18 : x
  2. Step 2: Convert to fraction form
    210,769,979.34/290,893,010.72 = 121,444,822.18/x
  3. Step 3: Cross multiply
    210,769,979.34x = 290,893,010.72 × 121,444,822.18
  4. Step 4: Simplify right side
    210,769,979.34x = 35,327,449,959,096,416
  5. Step 5: Solve for x
    x = 35,327,449,959,096,416/210,769,979.34
  6. Step 6: Final answer
    x = 167,611,393.56

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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.