Finding the Fourth Proportional to 718,642,169.24, 1,078,049,309.56 and 220,587,445.80
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Solution
The fourth proportional to 718,642,169.24, 1,078,049,309.56 and 220,587,445.80 is: 330,907,583.52
Step by Step Solution
- Step 1: Write the proportion equation
718,642,169.24 : 1,078,049,309.56 = 220,587,445.80 : x - Step 2: Convert to fraction form
718,642,169.24/1,078,049,309.56 = 220,587,445.80/x - Step 3: Cross multiply
718,642,169.24x = 1,078,049,309.56 × 220,587,445.80 - Step 4: Simplify right side
718,642,169.24x = 237,804,143,642,293,920 - Step 5: Solve for x
x = 237,804,143,642,293,920/718,642,169.24 - Step 6: Final answer
x = 330,907,583.52
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1.5x scale
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.