Finding the Fourth Proportional to 210,165,860.09, 290,046,814.31 and 117,364,296.17
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Solution
The fourth proportional to 210,165,860.09, 290,046,814.31 and 117,364,296.17 is: 161,972,740.02
Step by Step Solution
- Step 1: Write the proportion equation
210,165,860.09 : 290,046,814.31 = 117,364,296.17 : x - Step 2: Convert to fraction form
210,165,860.09/290,046,814.31 = 117,364,296.17/x - Step 3: Cross multiply
210,165,860.09x = 290,046,814.31 × 117,364,296.17 - Step 4: Simplify right side
210,165,860.09x = 34,041,140,218,862,360 - Step 5: Solve for x
x = 34,041,140,218,862,360/210,165,860.09 - Step 6: Final answer
x = 161,972,740.02
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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.