Home / 278,680,077.54-417,743,999.37-130,863,030.39

Finding the Fourth Proportional to 278,680,077.54, 417,743,999.37 and 130,863,030.39

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Solution

The fourth proportional to 278,680,077.54, 417,743,999.37 and 130,863,030.39 is: 196,164,886.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,680,077.54 : 417,743,999.37 = 130,863,030.39 : x
  2. Step 2: Convert to fraction form
    278,680,077.54/417,743,999.37 = 130,863,030.39/x
  3. Step 3: Cross multiply
    278,680,077.54x = 417,743,999.37 × 130,863,030.39
  4. Step 4: Simplify right side
    278,680,077.54x = 54,667,245,684,796,448
  5. Step 5: Solve for x
    x = 54,667,245,684,796,448/278,680,077.54
  6. Step 6: Final answer
    x = 196,164,886.16

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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.