Finding the Fourth Proportional to 22,790,602.13, 31,454,026.08 and 12,998,801.70
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Solution
The fourth proportional to 22,790,602.13, 31,454,026.08 and 12,998,801.70 is: 17,940,054.65
Step by Step Solution
- Step 1: Write the proportion equation
22,790,602.13 : 31,454,026.08 = 12,998,801.70 : x - Step 2: Convert to fraction form
22,790,602.13/31,454,026.08 = 12,998,801.70/x - Step 3: Cross multiply
22,790,602.13x = 31,454,026.08 × 12,998,801.70 - Step 4: Simplify right side
22,790,602.13x = 408,864,647,631,802.81 - Step 5: Solve for x
x = 408,864,647,631,802.81/22,790,602.13 - Step 6: Final answer
x = 17,940,054.65
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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.