Home / 215,366,907.80-323,050,361.70-129,370,568.60

Finding the Fourth Proportional to 215,366,907.80, 323,050,361.70 and 129,370,568.60

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Solution

The fourth proportional to 215,366,907.80, 323,050,361.70 and 129,370,568.60 is: 194,055,852.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,366,907.80 : 323,050,361.70 = 129,370,568.60 : x
  2. Step 2: Convert to fraction form
    215,366,907.80/323,050,361.70 = 129,370,568.60/x
  3. Step 3: Cross multiply
    215,366,907.80x = 323,050,361.70 × 129,370,568.60
  4. Step 4: Simplify right side
    215,366,907.80x = 41,793,208,979,564,656
  5. Step 5: Solve for x
    x = 41,793,208,979,564,656/215,366,907.80
  6. Step 6: Final answer
    x = 194,055,852.90

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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.