Home / 210,200,054.35-290,017,827.48-120,887,129.65

Finding the Fourth Proportional to 210,200,054.35, 290,017,827.48 and 120,887,129.65

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Solution

The fourth proportional to 210,200,054.35, 290,017,827.48 and 120,887,129.65 is: 166,790,740.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,200,054.35 : 290,017,827.48 = 120,887,129.65 : x
  2. Step 2: Convert to fraction form
    210,200,054.35/290,017,827.48 = 120,887,129.65/x
  3. Step 3: Cross multiply
    210,200,054.35x = 290,017,827.48 × 120,887,129.65
  4. Step 4: Simplify right side
    210,200,054.35x = 35,059,422,711,386,096
  5. Step 5: Solve for x
    x = 35,059,422,711,386,096/210,200,054.35
  6. Step 6: Final answer
    x = 166,790,740.47

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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.