Finding the Fourth Proportional to 69,869,713.19, 96,420,599.47 and 40,518,472.79
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Solution
The fourth proportional to 69,869,713.19, 96,420,599.47 and 40,518,472.79 is: 55,915,721.68
Step by Step Solution
- Step 1: Write the proportion equation
69,869,713.19 : 96,420,599.47 = 40,518,472.79 : x - Step 2: Convert to fraction form
69,869,713.19/96,420,599.47 = 40,518,472.79/x - Step 3: Cross multiply
69,869,713.19x = 96,420,599.47 × 40,518,472.79 - Step 4: Simplify right side
69,869,713.19x = 3,906,815,436,312,382.50 - Step 5: Solve for x
x = 3,906,815,436,312,382.50/69,869,713.19 - Step 6: Final answer
x = 55,915,721.68
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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.