Finding the Fourth Proportional to 99,154,914.50, 136,689,565.88 and 69,292,851.12
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Solution
The fourth proportional to 99,154,914.50, 136,689,565.88 and 69,292,851.12 is: 95,523,351.37
Step by Step Solution
- Step 1: Write the proportion equation
99,154,914.50 : 136,689,565.88 = 69,292,851.12 : x - Step 2: Convert to fraction form
99,154,914.50/136,689,565.88 = 69,292,851.12/x - Step 3: Cross multiply
99,154,914.50x = 136,689,565.88 × 69,292,851.12 - Step 4: Simplify right side
99,154,914.50x = 9,471,609,737,833,808 - Step 5: Solve for x
x = 9,471,609,737,833,808/99,154,914.50 - Step 6: Final answer
x = 95,523,351.37
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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.