Home / 539,763,782.40-809,645,673.60-130,819,933.44

Finding the Fourth Proportional to 539,763,782.40, 809,645,673.60 and 130,819,933.44

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Solution

The fourth proportional to 539,763,782.40, 809,645,673.60 and 130,819,933.44 is: 196,229,900.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,763,782.40 : 809,645,673.60 = 130,819,933.44 : x
  2. Step 2: Convert to fraction form
    539,763,782.40/809,645,673.60 = 130,819,933.44/x
  3. Step 3: Cross multiply
    539,763,782.40x = 809,645,673.60 × 130,819,933.44
  4. Step 4: Simplify right side
    539,763,782.40x = 105,917,793,130,335,968
  5. Step 5: Solve for x
    x = 105,917,793,130,335,968/539,763,782.40
  6. Step 6: Final answer
    x = 196,229,900.16

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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.