Finding the Fourth Proportional to 9,171,889.30, 12,657,490.54 and 5,042,235.99
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Solution
The fourth proportional to 9,171,889.30, 12,657,490.54 and 5,042,235.99 is: 6,958,441.41
Step by Step Solution
- Step 1: Write the proportion equation
9,171,889.30 : 12,657,490.54 = 5,042,235.99 : x - Step 2: Convert to fraction form
9,171,889.30/12,657,490.54 = 5,042,235.99/x - Step 3: Cross multiply
9,171,889.30x = 12,657,490.54 × 5,042,235.99 - Step 4: Simplify right side
9,171,889.30x = 63,822,054,331,266.95 - Step 5: Solve for x
x = 63,822,054,331,266.95/9,171,889.30 - Step 6: Final answer
x = 6,958,441.41
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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.