Home / 777,619,121.85-1,166,429,805.39-317,557,291.15

Finding the Fourth Proportional to 777,619,121.85, 1,166,429,805.39 and 317,557,291.15

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Solution

The fourth proportional to 777,619,121.85, 1,166,429,805.39 and 317,557,291.15 is: 476,336,395.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,619,121.85 : 1,166,429,805.39 = 317,557,291.15 : x
  2. Step 2: Convert to fraction form
    777,619,121.85/1,166,429,805.39 = 317,557,291.15/x
  3. Step 3: Cross multiply
    777,619,121.85x = 1,166,429,805.39 × 317,557,291.15
  4. Step 4: Simplify right side
    777,619,121.85x = 370,408,289,316,270,080
  5. Step 5: Solve for x
    x = 370,408,289,316,270,080/777,619,121.85
  6. Step 6: Final answer
    x = 476,336,395.17

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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.