Finding the Fourth Proportional to 231,317,811.18, 319,216,719.68 and 125,470,963.26
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Solution
The fourth proportional to 231,317,811.18, 319,216,719.68 and 125,470,963.26 is: 173,148,920.54
Step by Step Solution
- Step 1: Write the proportion equation
231,317,811.18 : 319,216,719.68 = 125,470,963.26 : x - Step 2: Convert to fraction form
231,317,811.18/319,216,719.68 = 125,470,963.26/x - Step 3: Cross multiply
231,317,811.18x = 319,216,719.68 × 125,470,963.26 - Step 4: Simplify right side
231,317,811.18x = 40,052,429,306,947,000 - Step 5: Solve for x
x = 40,052,429,306,947,000/231,317,811.18 - Step 6: Final answer
x = 173,148,920.54
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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.