Finding the Fourth Proportional to 898,146,817.80, 1,347,220,226.70 and 414,417,409.80
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Solution
The fourth proportional to 898,146,817.80, 1,347,220,226.70 and 414,417,409.80 is: 621,626,114.70
Step by Step Solution
- Step 1: Write the proportion equation
898,146,817.80 : 1,347,220,226.70 = 414,417,409.80 : x - Step 2: Convert to fraction form
898,146,817.80/1,347,220,226.70 = 414,417,409.80/x - Step 3: Cross multiply
898,146,817.80x = 1,347,220,226.70 × 414,417,409.80 - Step 4: Simplify right side
898,146,817.80x = 558,311,516,779,182,848 - Step 5: Solve for x
x = 558,311,516,779,182,848/898,146,817.80 - Step 6: Final answer
x = 621,626,114.70
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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.