Finding the Fourth Proportional to 375,210,138.06, 517,790,039.61 and 207,957,197.20
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Solution
The fourth proportional to 375,210,138.06, 517,790,039.61 and 207,957,197.20 is: 286,980,959.33
Step by Step Solution
- Step 1: Write the proportion equation
375,210,138.06 : 517,790,039.61 = 207,957,197.20 : x - Step 2: Convert to fraction form
375,210,138.06/517,790,039.61 = 207,957,197.20/x - Step 3: Cross multiply
375,210,138.06x = 517,790,039.61 × 207,957,197.20 - Step 4: Simplify right side
375,210,138.06x = 107,678,165,371,743,840 - Step 5: Solve for x
x = 107,678,165,371,743,840/375,210,138.06 - Step 6: Final answer
x = 286,980,959.33
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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.