Finding the Fourth Proportional to 156,990,310.65, 235,491,959.07 and 46,325,981.97
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Solution
The fourth proportional to 156,990,310.65, 235,491,959.07 and 46,325,981.97 is: 69,490,888.99
Step by Step Solution
- Step 1: Write the proportion equation
156,990,310.65 : 235,491,959.07 = 46,325,981.97 : x - Step 2: Convert to fraction form
156,990,310.65/235,491,959.07 = 46,325,981.97/x - Step 3: Cross multiply
156,990,310.65x = 235,491,959.07 × 46,325,981.97 - Step 4: Simplify right side
156,990,310.65x = 10,909,396,249,956,798 - Step 5: Solve for x
x = 10,909,396,249,956,798/156,990,310.65 - Step 6: Final answer
x = 69,490,888.99
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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.