Finding the Fourth Proportional to 371,640,533.84, 512,877,421.24 and 212,901,336.19
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Solution
The fourth proportional to 371,640,533.84, 512,877,421.24 and 212,901,336.19 is: 293,811,568.81
Step by Step Solution
- Step 1: Write the proportion equation
371,640,533.84 : 512,877,421.24 = 212,901,336.19 : x - Step 2: Convert to fraction form
371,640,533.84/512,877,421.24 = 212,901,336.19/x - Step 3: Cross multiply
371,640,533.84x = 512,877,421.24 × 212,901,336.19 - Step 4: Simplify right side
371,640,533.84x = 109,192,288,281,863,040 - Step 5: Solve for x
x = 109,192,288,281,863,040/371,640,533.84 - Step 6: Final answer
x = 293,811,568.81
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.