Finding the Fourth Proportional to 396,492,423.30, 547,127,465.58 and 229,239,415.41
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Solution
The fourth proportional to 396,492,423.30, 547,127,465.58 and 229,239,415.41 is: 316,331,846.45
Step by Step Solution
- Step 1: Write the proportion equation
396,492,423.30 : 547,127,465.58 = 229,239,415.41 : x - Step 2: Convert to fraction form
396,492,423.30/547,127,465.58 = 229,239,415.41/x - Step 3: Cross multiply
396,492,423.30x = 547,127,465.58 × 229,239,415.41 - Step 4: Simplify right side
396,492,423.30x = 125,423,180,364,314,112 - Step 5: Solve for x
x = 125,423,180,364,314,112/396,492,423.30 - Step 6: Final answer
x = 316,331,846.45
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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.