Finding the Fourth Proportional to 7,642,963.36, 10,547,541.66 and 4,380,403.60
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Solution
The fourth proportional to 7,642,963.36, 10,547,541.66 and 4,380,403.60 is: 6,045,101.52
Step by Step Solution
- Step 1: Write the proportion equation
7,642,963.36 : 10,547,541.66 = 4,380,403.60 : x - Step 2: Convert to fraction form
7,642,963.36/10,547,541.66 = 4,380,403.60/x - Step 3: Cross multiply
7,642,963.36x = 10,547,541.66 × 4,380,403.60 - Step 4: Simplify right side
7,642,963.36x = 46,202,489,458,613.98 - Step 5: Solve for x
x = 46,202,489,458,613.98/7,642,963.36 - Step 6: Final answer
x = 6,045,101.52
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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.