Home / 1,939,287,868-2,909,340,345.48-629,087,617.60

Finding the Fourth Proportional to 1,939,287,868, 2,909,340,345.48 and 629,087,617.60

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Solution

The fourth proportional to 1,939,287,868, 2,909,340,345.48 and 629,087,617.60 is: 943,763,954.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,287,868 : 2,909,340,345.48 = 629,087,617.60 : x
  2. Step 2: Convert to fraction form
    1,939,287,868/2,909,340,345.48 = 629,087,617.60/x
  3. Step 3: Cross multiply
    1,939,287,868x = 2,909,340,345.48 × 629,087,617.60
  4. Step 4: Simplify right side
    1,939,287,868x = 1,830,229,986,725,574,144
  5. Step 5: Solve for x
    x = 1,830,229,986,725,574,144/1,939,287,868
  6. Step 6: Final answer
    x = 943,763,954.25

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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.