Finding the Fourth Proportional to 367,926,292.26, 507,735,950.79 and 209,156,423.64
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Solution
The fourth proportional to 367,926,292.26, 507,735,950.79 and 209,156,423.64 is: 288,634,538.64
Step by Step Solution
- Step 1: Write the proportion equation
367,926,292.26 : 507,735,950.79 = 209,156,423.64 : x - Step 2: Convert to fraction form
367,926,292.26/507,735,950.79 = 209,156,423.64/x - Step 3: Cross multiply
367,926,292.26x = 507,735,950.79 × 209,156,423.64 - Step 4: Simplify right side
367,926,292.26x = 106,196,235,620,691,424 - Step 5: Solve for x
x = 106,196,235,620,691,424/367,926,292.26 - Step 6: Final answer
x = 288,634,538.64
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.