Finding the Fourth Proportional to 898,138,220.10, 1,347,207,330.15 and 886,044,984.90
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Solution
The fourth proportional to 898,138,220.10, 1,347,207,330.15 and 886,044,984.90 is: 1,329,067,477.35
Step by Step Solution
- Step 1: Write the proportion equation
898,138,220.10 : 1,347,207,330.15 = 886,044,984.90 : x - Step 2: Convert to fraction form
898,138,220.10/1,347,207,330.15 = 886,044,984.90/x - Step 3: Cross multiply
898,138,220.10x = 1,347,207,330.15 × 886,044,984.90 - Step 4: Simplify right side
898,138,220.10x = 1,193,686,298,499,926,016 - Step 5: Solve for x
x = 1,193,686,298,499,926,016/898,138,220.10 - Step 6: Final answer
x = 1,329,067,477.35
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.