Finding the Fourth Proportional to 309,173,610.11, 463,760,119.92 and 79,142,325.71
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Solution
The fourth proportional to 309,173,610.11, 463,760,119.92 and 79,142,325.71 is: 118,713,412.99
Step by Step Solution
- Step 1: Write the proportion equation
309,173,610.11 : 463,760,119.92 = 79,142,325.71 : x - Step 2: Convert to fraction form
309,173,610.11/463,760,119.92 = 79,142,325.71/x - Step 3: Cross multiply
309,173,610.11x = 463,760,119.92 × 79,142,325.71 - Step 4: Simplify right side
309,173,610.11x = 36,703,054,462,017,296 - Step 5: Solve for x
x = 36,703,054,462,017,296/309,173,610.11 - Step 6: Final answer
x = 118,713,412.99
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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.