Finding the Fourth Proportional to 27,637,705.11, 38,138,701.87 and 15,078,011.97
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Solution
The fourth proportional to 27,637,705.11, 38,138,701.87 and 15,078,011.97 is: 20,806,930.28
Step by Step Solution
- Step 1: Write the proportion equation
27,637,705.11 : 38,138,701.87 = 15,078,011.97 : x - Step 2: Convert to fraction form
27,637,705.11/38,138,701.87 = 15,078,011.97/x - Step 3: Cross multiply
27,637,705.11x = 38,138,701.87 × 15,078,011.97 - Step 4: Simplify right side
27,637,705.11x = 575,055,803,316,121.38 - Step 5: Solve for x
x = 575,055,803,316,121.38/27,637,705.11 - Step 6: Final answer
x = 20,806,930.28
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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.