Finding the Fourth Proportional to 15,090,320.39, 20,824,645.39 and 8,214,800.63
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Solution
The fourth proportional to 15,090,320.39, 20,824,645.39 and 8,214,800.63 is: 11,336,426.64
Step by Step Solution
- Step 1: Write the proportion equation
15,090,320.39 : 20,824,645.39 = 8,214,800.63 : x - Step 2: Convert to fraction form
15,090,320.39/20,824,645.39 = 8,214,800.63/x - Step 3: Cross multiply
15,090,320.39x = 20,824,645.39 × 8,214,800.63 - Step 4: Simplify right side
15,090,320.39x = 171,070,309,944,638.38 - Step 5: Solve for x
x = 171,070,309,944,638.38/15,090,320.39 - Step 6: Final answer
x = 11,336,426.64
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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.