Finding the Fourth Proportional to 7,911,411.84, 10,917,702.72 and 4,289,662.08
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Solution
The fourth proportional to 7,911,411.84, 10,917,702.72 and 4,289,662.08 is: 5,919,708.94
Step by Step Solution
- Step 1: Write the proportion equation
7,911,411.84 : 10,917,702.72 = 4,289,662.08 : x - Step 2: Convert to fraction form
7,911,411.84/10,917,702.72 = 4,289,662.08/x - Step 3: Cross multiply
7,911,411.84x = 10,917,702.72 × 4,289,662.08 - Step 4: Simplify right side
7,911,411.84x = 46,833,255,358,696.86 - Step 5: Solve for x
x = 46,833,255,358,696.86/7,911,411.84 - Step 6: Final answer
x = 5,919,708.94
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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.