Finding the Fourth Proportional to 19,963,322.80, 29,944,984.20 and 7,179,214.30
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Solution
The fourth proportional to 19,963,322.80, 29,944,984.20 and 7,179,214.30 is: 10,768,821.45
Step by Step Solution
- Step 1: Write the proportion equation
19,963,322.80 : 29,944,984.20 = 7,179,214.30 : x - Step 2: Convert to fraction form
19,963,322.80/29,944,984.20 = 7,179,214.30/x - Step 3: Cross multiply
19,963,322.80x = 29,944,984.20 × 7,179,214.30 - Step 4: Simplify right side
19,963,322.80x = 214,981,458,781,914.06 - Step 5: Solve for x
x = 214,981,458,781,914.06/19,963,322.80 - Step 6: Final answer
x = 10,768,821.45
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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.