Finding the Fourth Proportional to 7,144,395.84, 9,859,274.82 and 3,881,212.74
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Solution
The fourth proportional to 7,144,395.84, 9,859,274.82 and 3,881,212.74 is: 5,356,078.23
Step by Step Solution
- Step 1: Write the proportion equation
7,144,395.84 : 9,859,274.82 = 3,881,212.74 : x - Step 2: Convert to fraction form
7,144,395.84/9,859,274.82 = 3,881,212.74/x - Step 3: Cross multiply
7,144,395.84x = 9,859,274.82 × 3,881,212.74 - Step 4: Simplify right side
7,144,395.84x = 38,265,943,038,545.21 - Step 5: Solve for x
x = 38,265,943,038,545.21/7,144,395.84 - Step 6: Final answer
x = 5,356,078.23
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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.