Home / 290,176,979.40-435,322,875.42-82,917,263.88

Finding the Fourth Proportional to 290,176,979.40, 435,322,875.42 and 82,917,263.88

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Solution

The fourth proportional to 290,176,979.40, 435,322,875.42 and 82,917,263.88 is: 124,392,299.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,176,979.40 : 435,322,875.42 = 82,917,263.88 : x
  2. Step 2: Convert to fraction form
    290,176,979.40/435,322,875.42 = 82,917,263.88/x
  3. Step 3: Cross multiply
    290,176,979.40x = 435,322,875.42 × 82,917,263.88
  4. Step 4: Simplify right side
    290,176,979.40x = 36,095,781,734,200,504
  5. Step 5: Solve for x
    x = 36,095,781,734,200,504/290,176,979.40
  6. Step 6: Final answer
    x = 124,392,299.52

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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.