Finding the Fourth Proportional to 27,853,750.71, 38,440,938.02 and 15,630,656.31
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Solution
The fourth proportional to 27,853,750.71, 38,440,938.02 and 15,630,656.31 is: 21,571,855.68
Step by Step Solution
- Step 1: Write the proportion equation
27,853,750.71 : 38,440,938.02 = 15,630,656.31 : x - Step 2: Convert to fraction form
27,853,750.71/38,440,938.02 = 15,630,656.31/x - Step 3: Cross multiply
27,853,750.71x = 38,440,938.02 × 15,630,656.31 - Step 4: Simplify right side
27,853,750.71x = 600,857,090,346,478.62 - Step 5: Solve for x
x = 600,857,090,346,478.62/27,853,750.71 - Step 6: Final answer
x = 21,571,855.68
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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.