Finding the Fourth Proportional to 1,057,536,696.24, 1,586,574,132.84 and 621,206,401.68
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Solution
The fourth proportional to 1,057,536,696.24, 1,586,574,132.84 and 621,206,401.68 is: 931,967,667.47
Step by Step Solution
- Step 1: Write the proportion equation
1,057,536,696.24 : 1,586,574,132.84 = 621,206,401.68 : x - Step 2: Convert to fraction form
1,057,536,696.24/1,586,574,132.84 = 621,206,401.68/x - Step 3: Cross multiply
1,057,536,696.24x = 1,586,574,132.84 × 621,206,401.68 - Step 4: Simplify right side
1,057,536,696.24x = 985,590,008,060,102,528 - Step 5: Solve for x
x = 985,590,008,060,102,528/1,057,536,696.24 - Step 6: Final answer
x = 931,967,667.47
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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.