Finding the Fourth Proportional to 5,324,154,421.30, 7,986,231,631.95 and 1,393,852,981.30
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Solution
The fourth proportional to 5,324,154,421.30, 7,986,231,631.95 and 1,393,852,981.30 is: 2,090,779,471.95
Step by Step Solution
- Step 1: Write the proportion equation
5,324,154,421.30 : 7,986,231,631.95 = 1,393,852,981.30 : x - Step 2: Convert to fraction form
5,324,154,421.30/7,986,231,631.95 = 1,393,852,981.30/x - Step 3: Cross multiply
5,324,154,421.30x = 7,986,231,631.95 × 1,393,852,981.30 - Step 4: Simplify right side
5,324,154,421.30x = 11,131,632,769,545,871,360 - Step 5: Solve for x
x = 11,131,632,769,545,871,360/5,324,154,421.30 - Step 6: Final answer
x = 2,090,779,471.95
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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.