Finding the Fourth Proportional to 417,489,422.57, 576,119,619.32 and 231,862,395.68
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Solution
The fourth proportional to 417,489,422.57, 576,119,619.32 and 231,862,395.68 is: 319,961,340.13
Step by Step Solution
- Step 1: Write the proportion equation
417,489,422.57 : 576,119,619.32 = 231,862,395.68 : x - Step 2: Convert to fraction form
417,489,422.57/576,119,619.32 = 231,862,395.68/x - Step 3: Cross multiply
417,489,422.57x = 576,119,619.32 × 231,862,395.68 - Step 4: Simplify right side
417,489,422.57x = 133,580,475,133,784,832 - Step 5: Solve for x
x = 133,580,475,133,784,832/417,489,422.57 - Step 6: Final answer
x = 319,961,340.13
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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.