Home / 210,165,856.73-290,046,809.66-117,364,292.81

Finding the Fourth Proportional to 210,165,856.73, 290,046,809.66 and 117,364,292.81

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Solution

The fourth proportional to 210,165,856.73, 290,046,809.66 and 117,364,292.81 is: 161,972,735.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,165,856.73 : 290,046,809.66 = 117,364,292.81 : x
  2. Step 2: Convert to fraction form
    210,165,856.73/290,046,809.66 = 117,364,292.81/x
  3. Step 3: Cross multiply
    210,165,856.73x = 290,046,809.66 × 117,364,292.81
  4. Step 4: Simplify right side
    210,165,856.73x = 34,041,138,695,505,520
  5. Step 5: Solve for x
    x = 34,041,138,695,505,520/210,165,856.73
  6. Step 6: Final answer
    x = 161,972,735.37

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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.