Finding the Fourth Proportional to 827,486,125.19, 1,141,938,779.61 and 456,221,471.75
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Solution
The fourth proportional to 827,486,125.19, 1,141,938,779.61 and 456,221,471.75 is: 629,590,001.35
Step by Step Solution
- Step 1: Write the proportion equation
827,486,125.19 : 1,141,938,779.61 = 456,221,471.75 : x - Step 2: Convert to fraction form
827,486,125.19/1,141,938,779.61 = 456,221,471.75/x - Step 3: Cross multiply
827,486,125.19x = 1,141,938,779.61 × 456,221,471.75 - Step 4: Simplify right side
827,486,125.19x = 520,976,990,674,082,304 - Step 5: Solve for x
x = 520,976,990,674,082,304/827,486,125.19 - Step 6: Final answer
x = 629,590,001.35
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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.