Finding the Fourth Proportional to 78,379,679.18, 117,503,752.88 and 34,653,378.08
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Solution
The fourth proportional to 78,379,679.18, 117,503,752.88 and 34,653,378.08 is: 51,950,990.58
Step by Step Solution
- Step 1: Write the proportion equation
78,379,679.18 : 117,503,752.88 = 34,653,378.08 : x - Step 2: Convert to fraction form
78,379,679.18/117,503,752.88 = 34,653,378.08/x - Step 3: Cross multiply
78,379,679.18x = 117,503,752.88 × 34,653,378.08 - Step 4: Simplify right side
78,379,679.18x = 4,071,901,974,369,528.50 - Step 5: Solve for x
x = 4,071,901,974,369,528.50/78,379,679.18 - Step 6: Final answer
x = 51,950,990.58
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.