Finding the Fourth Proportional to 591,288,976.10, 815,984,074.06 and 326,988,752.18
Calculator
Solution
The fourth proportional to 591,288,976.10, 815,984,074.06 and 326,988,752.18 is: 451,247,401.79
Step by Step Solution
- Step 1: Write the proportion equation
591,288,976.10 : 815,984,074.06 = 326,988,752.18 : x - Step 2: Convert to fraction form
591,288,976.10/815,984,074.06 = 326,988,752.18/x - Step 3: Cross multiply
591,288,976.10x = 815,984,074.06 × 326,988,752.18 - Step 4: Simplify right side
591,288,976.10x = 266,817,614,170,734,720 - Step 5: Solve for x
x = 266,817,614,170,734,720/591,288,976.10 - Step 6: Final answer
x = 451,247,401.79
Related Problems
Find fourth proportional to 295,644,488.05, 407,992,037.03 and 163,494,376.09
Half scale
Find fourth proportional to 1,182,577,952.21, 1,631,968,148.12 and 653,977,504.35
Double scale
Find fourth proportional to 591,288,977.10, 815,984,075.44 and 326,988,753.18
Similar ratio
Find fourth proportional to 886,933,464.15, 1,223,976,111.09 and 490,483,128.26
1.5x scale
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.