Finding the Fourth Proportional to 7,776,381.70, 11,678,569.35 and 5,648,868.10
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Solution
The fourth proportional to 7,776,381.70, 11,678,569.35 and 5,648,868.10 is: 8,483,469.61
Step by Step Solution
- Step 1: Write the proportion equation
7,776,381.70 : 11,678,569.35 = 5,648,868.10 : x - Step 2: Convert to fraction form
7,776,381.70/11,678,569.35 = 5,648,868.10/x - Step 3: Cross multiply
7,776,381.70x = 11,678,569.35 × 5,648,868.10 - Step 4: Simplify right side
7,776,381.70x = 65,970,697,854,852.73 - Step 5: Solve for x
x = 65,970,697,854,852.73/7,776,381.70 - Step 6: Final answer
x = 8,483,469.61
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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.