Finding the Fourth Proportional to 472,392,745.70, 708,589,118.55 and 230,528,041.70
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Solution
The fourth proportional to 472,392,745.70, 708,589,118.55 and 230,528,041.70 is: 345,792,062.55
Step by Step Solution
- Step 1: Write the proportion equation
472,392,745.70 : 708,589,118.55 = 230,528,041.70 : x - Step 2: Convert to fraction form
472,392,745.70/708,589,118.55 = 230,528,041.70/x - Step 3: Cross multiply
472,392,745.70x = 708,589,118.55 × 230,528,041.70 - Step 4: Simplify right side
472,392,745.70x = 163,349,661,869,260,640 - Step 5: Solve for x
x = 163,349,661,869,260,640/472,392,745.70 - Step 6: Final answer
x = 345,792,062.55
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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.