Home / 260,146,519.60-390,434,450.40-130,790,893.36

Finding the Fourth Proportional to 260,146,519.60, 390,434,450.40 and 130,790,893.36

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Solution

The fourth proportional to 260,146,519.60, 390,434,450.40 and 130,790,893.36 is: 196,294,267.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,146,519.60 : 390,434,450.40 = 130,790,893.36 : x
  2. Step 2: Convert to fraction form
    260,146,519.60/390,434,450.40 = 130,790,893.36/x
  3. Step 3: Cross multiply
    260,146,519.60x = 390,434,450.40 × 130,790,893.36
  4. Step 4: Simplify right side
    260,146,519.60x = 51,065,270,566,336,608
  5. Step 5: Solve for x
    x = 51,065,270,566,336,608/260,146,519.60
  6. Step 6: Final answer
    x = 196,294,267.73

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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.