Finding the Fourth Proportional to 20,829,013.99, 31,248,509.28 and 8,691,725.74
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Solution
The fourth proportional to 20,829,013.99, 31,248,509.28 and 8,691,725.74 is: 13,039,670.17
Step by Step Solution
- Step 1: Write the proportion equation
20,829,013.99 : 31,248,509.28 = 8,691,725.74 : x - Step 2: Convert to fraction form
20,829,013.99/31,248,509.28 = 8,691,725.74/x - Step 3: Cross multiply
20,829,013.99x = 31,248,509.28 × 8,691,725.74 - Step 4: Simplify right side
20,829,013.99x = 271,603,472,445,604.88 - Step 5: Solve for x
x = 271,603,472,445,604.88/20,829,013.99 - Step 6: Final answer
x = 13,039,670.17
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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.