Finding the Fourth Proportional to 47,918,215.05, 71,884,754.13 and 20,252,248.99
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Solution
The fourth proportional to 47,918,215.05, 71,884,754.13 and 20,252,248.99 is: 30,381,514.37
Step by Step Solution
- Step 1: Write the proportion equation
47,918,215.05 : 71,884,754.13 = 20,252,248.99 : x - Step 2: Convert to fraction form
47,918,215.05/71,884,754.13 = 20,252,248.99/x - Step 3: Cross multiply
47,918,215.05x = 71,884,754.13 × 20,252,248.99 - Step 4: Simplify right side
47,918,215.05x = 1,455,827,939,153,309 - Step 5: Solve for x
x = 1,455,827,939,153,309/47,918,215.05 - Step 6: Final answer
x = 30,381,514.37
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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.