Finding the Fourth Proportional to 3,787,934.66, 5,681,901.99 and 1,390,742.09
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Solution
The fourth proportional to 3,787,934.66, 5,681,901.99 and 1,390,742.09 is: 2,086,113.14
Step by Step Solution
- Step 1: Write the proportion equation
3,787,934.66 : 5,681,901.99 = 1,390,742.09 : x - Step 2: Convert to fraction form
3,787,934.66/5,681,901.99 = 1,390,742.09/x - Step 3: Cross multiply
3,787,934.66x = 5,681,901.99 × 1,390,742.09 - Step 4: Simplify right side
3,787,934.66x = 7,902,060,248,747.76 - Step 5: Solve for x
x = 7,902,060,248,747.76/3,787,934.66 - Step 6: Final answer
x = 2,086,113.14
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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.