Finding the Fourth Proportional to 1,681,585,573.88, 2,320,543,132.34 and 928,882,549.28
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Solution
The fourth proportional to 1,681,585,573.88, 2,320,543,132.34 and 928,882,549.28 is: 1,281,833,082.99
Step by Step Solution
- Step 1: Write the proportion equation
1,681,585,573.88 : 2,320,543,132.34 = 928,882,549.28 : x - Step 2: Convert to fraction form
1,681,585,573.88/2,320,543,132.34 = 928,882,549.28/x - Step 3: Cross multiply
1,681,585,573.88x = 2,320,543,132.34 × 928,882,549.28 - Step 4: Simplify right side
1,681,585,573.88x = 2,155,512,020,465,928,448 - Step 5: Solve for x
x = 2,155,512,020,465,928,448/1,681,585,573.88 - Step 6: Final answer
x = 1,281,833,082.99
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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.