Finding the Fourth Proportional to 7,015,663.44, 9,681,542.04 and 3,960,006.48
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Solution
The fourth proportional to 7,015,663.44, 9,681,542.04 and 3,960,006.48 is: 5,464,767.45
Step by Step Solution
- Step 1: Write the proportion equation
7,015,663.44 : 9,681,542.04 = 3,960,006.48 : x - Step 2: Convert to fraction form
7,015,663.44/9,681,542.04 = 3,960,006.48/x - Step 3: Cross multiply
7,015,663.44x = 9,681,542.04 × 3,960,006.48 - Step 4: Simplify right side
7,015,663.44x = 38,338,969,214,792.41 - Step 5: Solve for x
x = 38,338,969,214,792.41/7,015,663.44 - Step 6: Final answer
x = 5,464,767.45
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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.