Finding the Fourth Proportional to 99,432,515.68, 137,221,148.12 and 55,379,534.11
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Solution
The fourth proportional to 99,432,515.68, 137,221,148.12 and 55,379,534.11 is: 76,426,138.89
Step by Step Solution
- Step 1: Write the proportion equation
99,432,515.68 : 137,221,148.12 = 55,379,534.11 : x - Step 2: Convert to fraction form
99,432,515.68/137,221,148.12 = 55,379,534.11/x - Step 3: Cross multiply
99,432,515.68x = 137,221,148.12 × 55,379,534.11 - Step 4: Simplify right side
99,432,515.68x = 7,599,243,253,737,019 - Step 5: Solve for x
x = 7,599,243,253,737,019/99,432,515.68 - Step 6: Final answer
x = 76,426,138.89
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.