Home / 210,369,520.77-290,338,778.16-121,059,629.52

Finding the Fourth Proportional to 210,369,520.77, 290,338,778.16 and 121,059,629.52

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Solution

The fourth proportional to 210,369,520.77, 290,338,778.16 and 121,059,629.52 is: 167,078,884.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,369,520.77 : 290,338,778.16 = 121,059,629.52 : x
  2. Step 2: Convert to fraction form
    210,369,520.77/290,338,778.16 = 121,059,629.52/x
  3. Step 3: Cross multiply
    210,369,520.77x = 290,338,778.16 × 121,059,629.52
  4. Step 4: Simplify right side
    210,369,520.77x = 35,148,304,919,339,068
  5. Step 5: Solve for x
    x = 35,148,304,919,339,068/210,369,520.77
  6. Step 6: Final answer
    x = 167,078,884.77

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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.