Finding the Fourth Proportional to 47,877,982.72, 66,071,691.84 and 27,251,430.40
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Solution
The fourth proportional to 47,877,982.72, 66,071,691.84 and 27,251,430.40 is: 37,607,017.03
Step by Step Solution
- Step 1: Write the proportion equation
47,877,982.72 : 66,071,691.84 = 27,251,430.40 : x - Step 2: Convert to fraction form
47,877,982.72/66,071,691.84 = 27,251,430.40/x - Step 3: Cross multiply
47,877,982.72x = 66,071,691.84 × 27,251,430.40 - Step 4: Simplify right side
47,877,982.72x = 1,800,548,111,588,008 - Step 5: Solve for x
x = 1,800,548,111,588,008/47,877,982.72 - Step 6: Final answer
x = 37,607,017.03
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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.