Finding the Fourth Proportional to 686,931,919.98, 1,029,855,951.08 and 341,697,115.50
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Solution
The fourth proportional to 686,931,919.98, 1,029,855,951.08 and 341,697,115.50 is: 512,276,104.27
Step by Step Solution
- Step 1: Write the proportion equation
686,931,919.98 : 1,029,855,951.08 = 341,697,115.50 : x - Step 2: Convert to fraction form
686,931,919.98/1,029,855,951.08 = 341,697,115.50/x - Step 3: Cross multiply
686,931,919.98x = 1,029,855,951.08 × 341,697,115.50 - Step 4: Simplify right side
686,931,919.98x = 351,898,807,864,545,152 - Step 5: Solve for x
x = 351,898,807,864,545,152/686,931,919.98 - Step 6: Final answer
x = 512,276,104.27
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.