Home / 290,396,071.80-435,881,087.52-154,081,455.28

Finding the Fourth Proportional to 290,396,071.80, 435,881,087.52 and 154,081,455.28

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Solution

The fourth proportional to 290,396,071.80, 435,881,087.52 and 154,081,455.28 is: 231,274,451.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,396,071.80 : 435,881,087.52 = 154,081,455.28 : x
  2. Step 2: Convert to fraction form
    290,396,071.80/435,881,087.52 = 154,081,455.28/x
  3. Step 3: Cross multiply
    290,396,071.80x = 435,881,087.52 × 154,081,455.28
  4. Step 4: Simplify right side
    290,396,071.80x = 67,161,192,294,110,640
  5. Step 5: Solve for x
    x = 67,161,192,294,110,640/290,396,071.80
  6. Step 6: Final answer
    x = 231,274,451.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.