Home / 1,987,435,251.78-2,742,768,504.59-1,140,655,804.26

Finding the Fourth Proportional to 1,987,435,251.78, 2,742,768,504.59 and 1,140,655,804.26

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Solution

The fourth proportional to 1,987,435,251.78, 2,742,768,504.59 and 1,140,655,804.26 is: 1,574,166,912.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,435,251.78 : 2,742,768,504.59 = 1,140,655,804.26 : x
  2. Step 2: Convert to fraction form
    1,987,435,251.78/2,742,768,504.59 = 1,140,655,804.26/x
  3. Step 3: Cross multiply
    1,987,435,251.78x = 2,742,768,504.59 × 1,140,655,804.26
  4. Step 4: Simplify right side
    1,987,435,251.78x = 3,128,554,814,496,400,896
  5. Step 5: Solve for x
    x = 3,128,554,814,496,400,896/1,987,435,251.78
  6. Step 6: Final answer
    x = 1,574,166,912.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.