Finding the Fourth Proportional to 5,251,146,382.76, 7,246,603,841.18 and 2,839,828,875.03
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Solution
The fourth proportional to 5,251,146,382.76, 7,246,603,841.18 and 2,839,828,875.03 is: 3,918,975,654.85
Step by Step Solution
- Step 1: Write the proportion equation
5,251,146,382.76 : 7,246,603,841.18 = 2,839,828,875.03 : x - Step 2: Convert to fraction form
5,251,146,382.76/7,246,603,841.18 = 2,839,828,875.03/x - Step 3: Cross multiply
5,251,146,382.76x = 7,246,603,841.18 × 2,839,828,875.03 - Step 4: Simplify right side
5,251,146,382.76x = 20,579,114,834,072,080,384 - Step 5: Solve for x
x = 20,579,114,834,072,080,384/5,251,146,382.76 - Step 6: Final answer
x = 3,918,975,654.85
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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.