Finding the Fourth Proportional to 72,110,421.13, 99,517,263.53 and 40,737,589.03
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Solution
The fourth proportional to 72,110,421.13, 99,517,263.53 and 40,737,589.03 is: 56,220,631.07
Step by Step Solution
- Step 1: Write the proportion equation
72,110,421.13 : 99,517,263.53 = 40,737,589.03 : x - Step 2: Convert to fraction form
72,110,421.13/99,517,263.53 = 40,737,589.03/x - Step 3: Cross multiply
72,110,421.13x = 99,517,263.53 × 40,737,589.03 - Step 4: Simplify right side
72,110,421.13x = 4,054,093,382,775,632.50 - Step 5: Solve for x
x = 4,054,093,382,775,632.50/72,110,421.13 - Step 6: Final answer
x = 56,220,631.07
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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.