Finding the Fourth Proportional to 22,690,425.36, 31,312,986.84 and 12,377,194.32
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Solution
The fourth proportional to 22,690,425.36, 31,312,986.84 and 12,377,194.32 is: 17,080,637.17
Step by Step Solution
- Step 1: Write the proportion equation
22,690,425.36 : 31,312,986.84 = 12,377,194.32 : x - Step 2: Convert to fraction form
22,690,425.36/31,312,986.84 = 12,377,194.32/x - Step 3: Cross multiply
22,690,425.36x = 31,312,986.84 × 12,377,194.32 - Step 4: Simplify right side
22,690,425.36x = 387,566,922,858,282.75 - Step 5: Solve for x
x = 387,566,922,858,282.75/22,690,425.36 - Step 6: Final answer
x = 17,080,637.17
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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.