Finding the Fourth Proportional to 6,302,391.68, 8,688,531.12 and 5,326,377.32
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Solution
The fourth proportional to 6,302,391.68, 8,688,531.12 and 5,326,377.32 is: 7,342,989.37
Step by Step Solution
- Step 1: Write the proportion equation
6,302,391.68 : 8,688,531.12 = 5,326,377.32 : x - Step 2: Convert to fraction form
6,302,391.68/8,688,531.12 = 5,326,377.32/x - Step 3: Cross multiply
6,302,391.68x = 8,688,531.12 × 5,326,377.32 - Step 4: Simplify right side
6,302,391.68x = 46,278,395,101,682.20 - Step 5: Solve for x
x = 46,278,395,101,682.20/6,302,391.68 - Step 6: Final answer
x = 7,342,989.37
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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.