Finding the Fourth Proportional to 45,119,707.83, 67,682,186.15 and 12,768,903.99
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Solution
The fourth proportional to 45,119,707.83, 67,682,186.15 and 12,768,903.99 is: 19,154,098.69
Step by Step Solution
- Step 1: Write the proportion equation
45,119,707.83 : 67,682,186.15 = 12,768,903.99 : x - Step 2: Convert to fraction form
45,119,707.83/67,682,186.15 = 12,768,903.99/x - Step 3: Cross multiply
45,119,707.83x = 67,682,186.15 × 12,768,903.99 - Step 4: Simplify right side
45,119,707.83x = 864,227,336,718,813.12 - Step 5: Solve for x
x = 864,227,336,718,813.12/45,119,707.83 - Step 6: Final answer
x = 19,154,098.69
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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.