Home / 1,121,929,836.66-1,683,075,590.73-345,575,136.33

Finding the Fourth Proportional to 1,121,929,836.66, 1,683,075,590.73 and 345,575,136.33

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Solution

The fourth proportional to 1,121,929,836.66, 1,683,075,590.73 and 345,575,136.33 is: 518,418,405.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,929,836.66 : 1,683,075,590.73 = 345,575,136.33 : x
  2. Step 2: Convert to fraction form
    1,121,929,836.66/1,683,075,590.73 = 345,575,136.33/x
  3. Step 3: Cross multiply
    1,121,929,836.66x = 1,683,075,590.73 × 345,575,136.33
  4. Step 4: Simplify right side
    1,121,929,836.66x = 581,629,076,720,215,040
  5. Step 5: Solve for x
    x = 581,629,076,720,215,040/1,121,929,836.66
  6. Step 6: Final answer
    x = 518,418,405.25

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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.