Finding the Fourth Proportional to 99,447,524.80, 148,919,344.80 and 79,292,132.80
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Solution
The fourth proportional to 99,447,524.80, 148,919,344.80 and 79,292,132.80 is: 118,737,318.88
Step by Step Solution
- Step 1: Write the proportion equation
99,447,524.80 : 148,919,344.80 = 79,292,132.80 : x - Step 2: Convert to fraction form
99,447,524.80/148,919,344.80 = 79,292,132.80/x - Step 3: Cross multiply
99,447,524.80x = 148,919,344.80 × 79,292,132.80 - Step 4: Simplify right side
99,447,524.80x = 11,808,132,464,370,590 - Step 5: Solve for x
x = 11,808,132,464,370,590/99,447,524.80 - Step 6: Final answer
x = 118,737,318.88
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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.