Finding the Fourth Proportional to 218,565,252.21, 327,811,964.13 and 78,476,712.06
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Solution
The fourth proportional to 218,565,252.21, 327,811,964.13 and 78,476,712.06 is: 117,702,172.96
Step by Step Solution
- Step 1: Write the proportion equation
218,565,252.21 : 327,811,964.13 = 78,476,712.06 : x - Step 2: Convert to fraction form
218,565,252.21/327,811,964.13 = 78,476,712.06/x - Step 3: Cross multiply
218,565,252.21x = 327,811,964.13 × 78,476,712.06 - Step 4: Simplify right side
218,565,252.21x = 25,725,605,118,853,060 - Step 5: Solve for x
x = 25,725,605,118,853,060/218,565,252.21 - Step 6: Final answer
x = 117,702,172.96
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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.