Finding the Fourth Proportional to 116,766,374.08, 161,163,176.16 and 67,901,990.08
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Solution
The fourth proportional to 116,766,374.08, 161,163,176.16 and 67,901,990.08 is: 93,719,621.55
Step by Step Solution
- Step 1: Write the proportion equation
116,766,374.08 : 161,163,176.16 = 67,901,990.08 : x - Step 2: Convert to fraction form
116,766,374.08/161,163,176.16 = 67,901,990.08/x - Step 3: Cross multiply
116,766,374.08x = 161,163,176.16 × 67,901,990.08 - Step 4: Simplify right side
116,766,374.08x = 10,943,300,388,877,612 - Step 5: Solve for x
x = 10,943,300,388,877,612/116,766,374.08 - Step 6: Final answer
x = 93,719,621.55
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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.