Home / 210,237,276.73-290,118,660.11-120,922,428.69

Finding the Fourth Proportional to 210,237,276.73, 290,118,660.11 and 120,922,428.69

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Solution

The fourth proportional to 210,237,276.73, 290,118,660.11 and 120,922,428.69 is: 166,867,900.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,237,276.73 : 290,118,660.11 = 120,922,428.69 : x
  2. Step 2: Convert to fraction form
    210,237,276.73/290,118,660.11 = 120,922,428.69/x
  3. Step 3: Cross multiply
    210,237,276.73x = 290,118,660.11 × 120,922,428.69
  4. Step 4: Simplify right side
    210,237,276.73x = 35,081,852,988,789,824
  5. Step 5: Solve for x
    x = 35,081,852,988,789,824/210,237,276.73
  6. Step 6: Final answer
    x = 166,867,900.57

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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.