Finding the Fourth Proportional to 6,464,336.25, 8,920,852.74 and 3,563,830.92
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Solution
The fourth proportional to 6,464,336.25, 8,920,852.74 and 3,563,830.92 is: 4,918,124.55
Step by Step Solution
- Step 1: Write the proportion equation
6,464,336.25 : 8,920,852.74 = 3,563,830.92 : x - Step 2: Convert to fraction form
6,464,336.25/8,920,852.74 = 3,563,830.92/x - Step 3: Cross multiply
6,464,336.25x = 8,920,852.74 × 3,563,830.92 - Step 4: Simplify right side
6,464,336.25x = 31,792,410,827,578.72 - Step 5: Solve for x
x = 31,792,410,827,578.72/6,464,336.25 - Step 6: Final answer
x = 4,918,124.55
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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.