Finding the Fourth Proportional to 99,689,935.80, 149,555,121.30 and 56,579,791.80
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Solution
The fourth proportional to 99,689,935.80, 149,555,121.30 and 56,579,791.80 is: 84,881,162.35
Step by Step Solution
- Step 1: Write the proportion equation
99,689,935.80 : 149,555,121.30 = 56,579,791.80 : x - Step 2: Convert to fraction form
99,689,935.80/149,555,121.30 = 56,579,791.80/x - Step 3: Cross multiply
99,689,935.80x = 149,555,121.30 × 56,579,791.80 - Step 4: Simplify right side
99,689,935.80x = 8,461,797,625,777,746 - Step 5: Solve for x
x = 8,461,797,625,777,746/99,689,935.80 - Step 6: Final answer
x = 84,881,162.35
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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.