Finding the Fourth Proportional to 485,168,326.20, 727,256,477.70 and 239,146,572.60
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Solution
The fourth proportional to 485,168,326.20, 727,256,477.70 and 239,146,572.60 is: 358,475,367.52
Step by Step Solution
- Step 1: Write the proportion equation
485,168,326.20 : 727,256,477.70 = 239,146,572.60 : x - Step 2: Convert to fraction form
485,168,326.20/727,256,477.70 = 239,146,572.60/x - Step 3: Cross multiply
485,168,326.20x = 727,256,477.70 × 239,146,572.60 - Step 4: Simplify right side
485,168,326.20x = 173,920,894,043,103,328 - Step 5: Solve for x
x = 173,920,894,043,103,328/485,168,326.20 - Step 6: Final answer
x = 358,475,367.52
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.