Finding the Fourth Proportional to 8,600,403.36, 11,865,884.63 and 4,878,620.99
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Solution
The fourth proportional to 8,600,403.36, 11,865,884.63 and 4,878,620.99 is: 6,730,981.25
Step by Step Solution
- Step 1: Write the proportion equation
8,600,403.36 : 11,865,884.63 = 4,878,620.99 : x - Step 2: Convert to fraction form
8,600,403.36/11,865,884.63 = 4,878,620.99/x - Step 3: Cross multiply
8,600,403.36x = 11,865,884.63 × 4,878,620.99 - Step 4: Simplify right side
8,600,403.36x = 57,889,153,737,113.86 - Step 5: Solve for x
x = 57,889,153,737,113.86/8,600,403.36 - Step 6: Final answer
x = 6,730,981.25
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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.