Finding the Fourth Proportional to 7,145,032,608.85, 10,718,769,927.06 and 2,945,689,849.99
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Solution
The fourth proportional to 7,145,032,608.85, 10,718,769,927.06 and 2,945,689,849.99 is: 4,419,038,163.58
Step by Step Solution
- Step 1: Write the proportion equation
7,145,032,608.85 : 10,718,769,927.06 = 2,945,689,849.99 : x - Step 2: Convert to fraction form
7,145,032,608.85/10,718,769,927.06 = 2,945,689,849.99/x - Step 3: Cross multiply
7,145,032,608.85x = 10,718,769,927.06 × 2,945,689,849.99 - Step 4: Simplify right side
7,145,032,608.85x = 31,574,171,778,518,691,840 - Step 5: Solve for x
x = 31,574,171,778,518,691,840/7,145,032,608.85 - Step 6: Final answer
x = 4,419,038,163.58
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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.