Finding the Fourth Proportional to 898,641,330.40, 1,347,961,995.60 and 735,382,655.20
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Solution
The fourth proportional to 898,641,330.40, 1,347,961,995.60 and 735,382,655.20 is: 1,103,073,982.80
Step by Step Solution
- Step 1: Write the proportion equation
898,641,330.40 : 1,347,961,995.60 = 735,382,655.20 : x - Step 2: Convert to fraction form
898,641,330.40/1,347,961,995.60 = 735,382,655.20/x - Step 3: Cross multiply
898,641,330.40x = 1,347,961,995.60 × 735,382,655.20 - Step 4: Simplify right side
898,641,330.40x = 991,267,871,433,018,752 - Step 5: Solve for x
x = 991,267,871,433,018,752/898,641,330.40 - Step 6: Final answer
x = 1,103,073,982.80
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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.