Finding the Fourth Proportional to 91,079,985.13, 136,619,871.58 and 29,669,044.78
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Solution
The fourth proportional to 91,079,985.13, 136,619,871.58 and 29,669,044.78 is: 44,503,532.60
Step by Step Solution
- Step 1: Write the proportion equation
91,079,985.13 : 136,619,871.58 = 29,669,044.78 : x - Step 2: Convert to fraction form
91,079,985.13/136,619,871.58 = 29,669,044.78/x - Step 3: Cross multiply
91,079,985.13x = 136,619,871.58 × 29,669,044.78 - Step 4: Simplify right side
91,079,985.13x = 4,053,381,087,744,870 - Step 5: Solve for x
x = 4,053,381,087,744,870/91,079,985.13 - Step 6: Final answer
x = 44,503,532.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.