Finding the Fourth Proportional to 1,284,249,527.66, 1,772,234,201.84 and 755,647,749.38
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Solution
The fourth proportional to 1,284,249,527.66, 1,772,234,201.84 and 755,647,749.38 is: 1,042,776,156.15
Step by Step Solution
- Step 1: Write the proportion equation
1,284,249,527.66 : 1,772,234,201.84 = 755,647,749.38 : x - Step 2: Convert to fraction form
1,284,249,527.66/1,772,234,201.84 = 755,647,749.38/x - Step 3: Cross multiply
1,284,249,527.66x = 1,772,234,201.84 × 755,647,749.38 - Step 4: Simplify right side
1,284,249,527.66x = 1,339,184,785,994,656,512 - Step 5: Solve for x
x = 1,339,184,785,994,656,512/1,284,249,527.66 - Step 6: Final answer
x = 1,042,776,156.15
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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.