Finding the Fourth Proportional to 69,869,715.19, 96,420,602.23 and 40,518,474.79
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Solution
The fourth proportional to 69,869,715.19, 96,420,602.23 and 40,518,474.79 is: 55,915,724.43
Step by Step Solution
- Step 1: Write the proportion equation
69,869,715.19 : 96,420,602.23 = 40,518,474.79 : x - Step 2: Convert to fraction form
69,869,715.19/96,420,602.23 = 40,518,474.79/x - Step 3: Cross multiply
69,869,715.19x = 96,420,602.23 × 40,518,474.79 - Step 4: Simplify right side
69,869,715.19x = 3,906,815,740,692,873 - Step 5: Solve for x
x = 3,906,815,740,692,873/69,869,715.19 - Step 6: Final answer
x = 55,915,724.43
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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.