Finding the Fourth Proportional to 306,813,658.05, 423,400,043.57 and 167,584,378.05
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Solution
The fourth proportional to 306,813,658.05, 423,400,043.57 and 167,584,378.05 is: 231,264,909.84
Step by Step Solution
- Step 1: Write the proportion equation
306,813,658.05 : 423,400,043.57 = 167,584,378.05 : x - Step 2: Convert to fraction form
306,813,658.05/423,400,043.57 = 167,584,378.05/x - Step 3: Cross multiply
306,813,658.05x = 423,400,043.57 × 167,584,378.05 - Step 4: Simplify right side
306,813,658.05x = 70,955,232,967,183,432 - Step 5: Solve for x
x = 70,955,232,967,183,432/306,813,658.05 - Step 6: Final answer
x = 231,264,909.84
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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.