Finding the Fourth Proportional to 218,610,454.68, 327,973,171.95 and 78,565,048.65
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Solution
The fourth proportional to 218,610,454.68, 327,973,171.95 and 78,565,048.65 is: 117,868,233.92
Step by Step Solution
- Step 1: Write the proportion equation
218,610,454.68 : 327,973,171.95 = 78,565,048.65 : x - Step 2: Convert to fraction form
218,610,454.68/327,973,171.95 = 78,565,048.65/x - Step 3: Cross multiply
218,610,454.68x = 327,973,171.95 × 78,565,048.65 - Step 4: Simplify right side
218,610,454.68x = 25,767,228,210,146,568 - Step 5: Solve for x
x = 25,767,228,210,146,568/218,610,454.68 - Step 6: Final answer
x = 117,868,233.92
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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.