Finding the Fourth Proportional to 1,820,578,701.22, 2,512,398,610.92 and 985,203,271.54
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Solution
The fourth proportional to 1,820,578,701.22, 2,512,398,610.92 and 985,203,271.54 is: 1,359,580,516.48
Step by Step Solution
- Step 1: Write the proportion equation
1,820,578,701.22 : 2,512,398,610.92 = 985,203,271.54 : x - Step 2: Convert to fraction form
1,820,578,701.22/2,512,398,610.92 = 985,203,271.54/x - Step 3: Cross multiply
1,820,578,701.22x = 2,512,398,610.92 × 985,203,271.54 - Step 4: Simplify right side
1,820,578,701.22x = 2,475,223,330,890,935,296 - Step 5: Solve for x
x = 2,475,223,330,890,935,296/1,820,578,701.22 - Step 6: Final answer
x = 1,359,580,516.48
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.