Finding the Fourth Proportional to 11,878,312.94, 16,392,071.87 and 6,445,804.94
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Solution
The fourth proportional to 11,878,312.94, 16,392,071.87 and 6,445,804.94 is: 8,895,210.82
Step by Step Solution
- Step 1: Write the proportion equation
11,878,312.94 : 16,392,071.87 = 6,445,804.94 : x - Step 2: Convert to fraction form
11,878,312.94/16,392,071.87 = 6,445,804.94/x - Step 3: Cross multiply
11,878,312.94x = 16,392,071.87 × 6,445,804.94 - Step 4: Simplify right side
11,878,312.94x = 105,660,097,836,481.05 - Step 5: Solve for x
x = 105,660,097,836,481.05/11,878,312.94 - Step 6: Final answer
x = 8,895,210.82
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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.