Finding the Fourth Proportional to 442,889,980.20, 664,331,471.10 and 115,364,860.20
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Solution
The fourth proportional to 442,889,980.20, 664,331,471.10 and 115,364,860.20 is: 173,046,378.82
Step by Step Solution
- Step 1: Write the proportion equation
442,889,980.20 : 664,331,471.10 = 115,364,860.20 : x - Step 2: Convert to fraction form
442,889,980.20/664,331,471.10 = 115,364,860.20/x - Step 3: Cross multiply
442,889,980.20x = 664,331,471.10 × 115,364,860.20 - Step 4: Simplify right side
442,889,980.20x = 76,640,507,289,911,840 - Step 5: Solve for x
x = 76,640,507,289,911,840/442,889,980.20 - Step 6: Final answer
x = 173,046,378.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.