Finding the Fourth Proportional to 639,139,227.53, 957,861,303.62 and 328,234,285.11
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Solution
The fourth proportional to 639,139,227.53, 957,861,303.62 and 328,234,285.11 is: 491,916,168.95
Step by Step Solution
- Step 1: Write the proportion equation
639,139,227.53 : 957,861,303.62 = 328,234,285.11 : x - Step 2: Convert to fraction form
639,139,227.53/957,861,303.62 = 328,234,285.11/x - Step 3: Cross multiply
639,139,227.53x = 957,861,303.62 × 328,234,285.11 - Step 4: Simplify right side
639,139,227.53x = 314,402,920,226,602,176 - Step 5: Solve for x
x = 314,402,920,226,602,176/639,139,227.53 - Step 6: Final answer
x = 491,916,168.95
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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.