Finding the Fourth Proportional to 8,643,467.58, 11,927,812.05 and 4,775,889.30
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Solution
The fourth proportional to 8,643,467.58, 11,927,812.05 and 4,775,889.30 is: 6,590,631.53
Step by Step Solution
- Step 1: Write the proportion equation
8,643,467.58 : 11,927,812.05 = 4,775,889.30 : x - Step 2: Convert to fraction form
8,643,467.58/11,927,812.05 = 4,775,889.30/x - Step 3: Cross multiply
8,643,467.58x = 11,927,812.05 × 4,775,889.30 - Step 4: Simplify right side
8,643,467.58x = 56,965,909,942,006.06 - Step 5: Solve for x
x = 56,965,909,942,006.06/8,643,467.58 - Step 6: Final answer
x = 6,590,631.53
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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.