Finding the Fourth Proportional to 1,811,746,515.12, 2,718,406,715.47 and 983,285,463.91
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Solution
The fourth proportional to 1,811,746,515.12, 2,718,406,715.47 and 983,285,463.91 is: 1,475,355,291.70
Step by Step Solution
- Step 1: Write the proportion equation
1,811,746,515.12 : 2,718,406,715.47 = 983,285,463.91 : x - Step 2: Convert to fraction form
1,811,746,515.12/2,718,406,715.47 = 983,285,463.91/x - Step 3: Cross multiply
1,811,746,515.12x = 2,718,406,715.47 × 983,285,463.91 - Step 4: Simplify right side
1,811,746,515.12x = 2,672,969,808,298,469,888 - Step 5: Solve for x
x = 2,672,969,808,298,469,888/1,811,746,515.12 - Step 6: Final answer
x = 1,475,355,291.70
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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.