Home / 210,769,666.26-290,892,563.69-121,444,502.57

Finding the Fourth Proportional to 210,769,666.26, 290,892,563.69 and 121,444,502.57

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Solution

The fourth proportional to 210,769,666.26, 290,892,563.69 and 121,444,502.57 is: 167,610,943.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,769,666.26 : 290,892,563.69 = 121,444,502.57 : x
  2. Step 2: Convert to fraction form
    210,769,666.26/290,892,563.69 = 121,444,502.57/x
  3. Step 3: Cross multiply
    210,769,666.26x = 290,892,563.69 × 121,444,502.57
  4. Step 4: Simplify right side
    210,769,666.26x = 35,327,302,698,644,092
  5. Step 5: Solve for x
    x = 35,327,302,698,644,092/210,769,666.26
  6. Step 6: Final answer
    x = 167,610,943.86

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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.