Finding the Fourth Proportional to 2,958,445,320, 4,082,576,401.44 and 1,688,263,537.20
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Solution
The fourth proportional to 2,958,445,320, 4,082,576,401.44 and 1,688,263,537.20 is: 2,329,759,089.95
Step by Step Solution
- Step 1: Write the proportion equation
2,958,445,320 : 4,082,576,401.44 = 1,688,263,537.20 : x - Step 2: Convert to fraction form
2,958,445,320/4,082,576,401.44 = 1,688,263,537.20/x - Step 3: Cross multiply
2,958,445,320x = 4,082,576,401.44 × 1,688,263,537.20 - Step 4: Simplify right side
2,958,445,320x = 6,892,464,876,384,342,016 - Step 5: Solve for x
x = 6,892,464,876,384,342,016/2,958,445,320 - Step 6: Final answer
x = 2,329,759,089.95
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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.