Home / 210,200,053.35-290,017,826.10-120,887,128.65

Finding the Fourth Proportional to 210,200,053.35, 290,017,826.10 and 120,887,128.65

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Solution

The fourth proportional to 210,200,053.35, 290,017,826.10 and 120,887,128.65 is: 166,790,739.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,200,053.35 : 290,017,826.10 = 120,887,128.65 : x
  2. Step 2: Convert to fraction form
    210,200,053.35/290,017,826.10 = 120,887,128.65/x
  3. Step 3: Cross multiply
    210,200,053.35x = 290,017,826.10 × 120,887,128.65
  4. Step 4: Simplify right side
    210,200,053.35x = 35,059,422,254,544,032
  5. Step 5: Solve for x
    x = 35,059,422,254,544,032/210,200,053.35
  6. Step 6: Final answer
    x = 166,790,739.09

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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.