Finding the Fourth Proportional to 318,471,080.13, 439,475,954.13 and 177,349,579.65
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Solution
The fourth proportional to 318,471,080.13, 439,475,954.13 and 177,349,579.65 is: 244,734,547.64
Step by Step Solution
- Step 1: Write the proportion equation
318,471,080.13 : 439,475,954.13 = 177,349,579.65 : x - Step 2: Convert to fraction form
318,471,080.13/439,475,954.13 = 177,349,579.65/x - Step 3: Cross multiply
318,471,080.13x = 439,475,954.13 × 177,349,579.65 - Step 4: Simplify right side
318,471,080.13x = 77,940,875,731,238,176 - Step 5: Solve for x
x = 77,940,875,731,238,176/318,471,080.13 - Step 6: Final answer
x = 244,734,547.64
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.