Finding the Fourth Proportional to 28,611,324.68, 39,484,666.74 and 16,390,543.88
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Solution
The fourth proportional to 28,611,324.68, 39,484,666.74 and 16,390,543.88 is: 22,619,545.58
Step by Step Solution
- Step 1: Write the proportion equation
28,611,324.68 : 39,484,666.74 = 16,390,543.88 : x - Step 2: Convert to fraction form
28,611,324.68/39,484,666.74 = 16,390,543.88/x - Step 3: Cross multiply
28,611,324.68x = 39,484,666.74 × 16,390,543.88 - Step 4: Simplify right side
28,611,324.68x = 647,175,162,789,146.62 - Step 5: Solve for x
x = 647,175,162,789,146.62/28,611,324.68 - Step 6: Final answer
x = 22,619,545.58
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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.