Finding the Fourth Proportional to 18,588,552.12, 27,893,741.28 and 7,805,023.74
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Solution
The fourth proportional to 18,588,552.12, 27,893,741.28 and 7,805,023.74 is: 11,712,117.84
Step by Step Solution
- Step 1: Write the proportion equation
18,588,552.12 : 27,893,741.28 = 7,805,023.74 : x - Step 2: Convert to fraction form
18,588,552.12/27,893,741.28 = 7,805,023.74/x - Step 3: Cross multiply
18,588,552.12x = 27,893,741.28 × 7,805,023.74 - Step 4: Simplify right side
18,588,552.12x = 217,711,312,887,818 - Step 5: Solve for x
x = 217,711,312,887,818/18,588,552.12 - Step 6: Final answer
x = 11,712,117.84
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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.