Finding the Fourth Proportional to 1,441,596,673.38, 1,989,480,652.68 and 806,479,278.12
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Solution
The fourth proportional to 1,441,596,673.38, 1,989,480,652.68 and 806,479,278.12 is: 1,112,984,616.46
Step by Step Solution
- Step 1: Write the proportion equation
1,441,596,673.38 : 1,989,480,652.68 = 806,479,278.12 : x - Step 2: Convert to fraction form
1,441,596,673.38/1,989,480,652.68 = 806,479,278.12/x - Step 3: Cross multiply
1,441,596,673.38x = 1,989,480,652.68 × 806,479,278.12 - Step 4: Simplify right side
1,441,596,673.38x = 1,604,474,920,607,073,024 - Step 5: Solve for x
x = 1,604,474,920,607,073,024/1,441,596,673.38 - Step 6: Final answer
x = 1,112,984,616.46
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Double scale
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1.5x scale
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.