Finding the Fourth Proportional to 84,897,479.68, 117,162,678.19 and 47,739,457.11
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Solution
The fourth proportional to 84,897,479.68, 117,162,678.19 and 47,739,457.11 is: 65,882,787.94
Step by Step Solution
- Step 1: Write the proportion equation
84,897,479.68 : 117,162,678.19 = 47,739,457.11 : x - Step 2: Convert to fraction form
84,897,479.68/117,162,678.19 = 47,739,457.11/x - Step 3: Cross multiply
84,897,479.68x = 117,162,678.19 × 47,739,457.11 - Step 4: Simplify right side
84,897,479.68x = 5,593,282,650,888,148 - Step 5: Solve for x
x = 5,593,282,650,888,148/84,897,479.68 - Step 6: Final answer
x = 65,882,787.94
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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.