Finding the Fourth Proportional to 99,646,089.96, 137,511,689.74 and 55,593,095.64
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Solution
The fourth proportional to 99,646,089.96, 137,511,689.74 and 55,593,095.64 is: 76,718,519.74
Step by Step Solution
- Step 1: Write the proportion equation
99,646,089.96 : 137,511,689.74 = 55,593,095.64 : x - Step 2: Convert to fraction form
99,646,089.96/137,511,689.74 = 55,593,095.64/x - Step 3: Cross multiply
99,646,089.96x = 137,511,689.74 × 55,593,095.64 - Step 4: Simplify right side
99,646,089.96x = 7,644,700,519,333,827 - Step 5: Solve for x
x = 7,644,700,519,333,827/99,646,089.96 - Step 6: Final answer
x = 76,718,519.74
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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.