Home / 305,990,036.51-422,267,680.37-173,838,284.56

Finding the Fourth Proportional to 305,990,036.51, 422,267,680.37 and 173,838,284.56

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Solution

The fourth proportional to 305,990,036.51, 422,267,680.37 and 173,838,284.56 is: 239,897,645.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,990,036.51 : 422,267,680.37 = 173,838,284.56 : x
  2. Step 2: Convert to fraction form
    305,990,036.51/422,267,680.37 = 173,838,284.56/x
  3. Step 3: Cross multiply
    305,990,036.51x = 422,267,680.37 × 173,838,284.56
  4. Step 4: Simplify right side
    305,990,036.51x = 73,406,289,178,257,536
  5. Step 5: Solve for x
    x = 73,406,289,178,257,536/305,990,036.51
  6. Step 6: Final answer
    x = 239,897,645.08

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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.