Finding the Fourth Proportional to 219,551,783.21, 302,978,602.12 and 125,464,859.63
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Solution
The fourth proportional to 219,551,783.21, 302,978,602.12 and 125,464,859.63 is: 173,139,872.65
Step by Step Solution
- Step 1: Write the proportion equation
219,551,783.21 : 302,978,602.12 = 125,464,859.63 : x - Step 2: Convert to fraction form
219,551,783.21/302,978,602.12 = 125,464,859.63/x - Step 3: Cross multiply
219,551,783.21x = 302,978,602.12 × 125,464,859.63 - Step 4: Simplify right side
219,551,783.21x = 38,013,167,783,737,208 - Step 5: Solve for x
x = 38,013,167,783,737,208/219,551,783.21 - Step 6: Final answer
x = 173,139,872.65
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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.