Finding the Fourth Proportional to 13,072,616.40, 19,602,934.20 and 7,006,414.80
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Solution
The fourth proportional to 13,072,616.40, 19,602,934.20 and 7,006,414.80 is: 10,506,411.58
Step by Step Solution
- Step 1: Write the proportion equation
13,072,616.40 : 19,602,934.20 = 7,006,414.80 : x - Step 2: Convert to fraction form
13,072,616.40/19,602,934.20 = 7,006,414.80/x - Step 3: Cross multiply
13,072,616.40x = 19,602,934.20 × 7,006,414.80 - Step 4: Simplify right side
13,072,616.40x = 137,346,288,302,306.16 - Step 5: Solve for x
x = 137,346,288,302,306.16/13,072,616.40 - Step 6: Final answer
x = 10,506,411.58
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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.