Finding the Fourth Proportional to 81,168,305.80, 121,794,317.92 and 38,041,890.52
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Solution
The fourth proportional to 81,168,305.80, 121,794,317.92 and 38,041,890.52 is: 57,082,454.32
Step by Step Solution
- Step 1: Write the proportion equation
81,168,305.80 : 121,794,317.92 = 38,041,890.52 : x - Step 2: Convert to fraction form
81,168,305.80/121,794,317.92 = 38,041,890.52/x - Step 3: Cross multiply
81,168,305.80x = 121,794,317.92 × 38,041,890.52 - Step 4: Simplify right side
81,168,305.80x = 4,633,286,108,270,715 - Step 5: Solve for x
x = 4,633,286,108,270,715/81,168,305.80 - Step 6: Final answer
x = 57,082,454.32
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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.