Finding the Fourth Proportional to 472,392,809.70, 708,589,214.55 and 455,174,121.30
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Solution
The fourth proportional to 472,392,809.70, 708,589,214.55 and 455,174,121.30 is: 682,761,181.95
Step by Step Solution
- Step 1: Write the proportion equation
472,392,809.70 : 708,589,214.55 = 455,174,121.30 : x - Step 2: Convert to fraction form
472,392,809.70/708,589,214.55 = 455,174,121.30/x - Step 3: Cross multiply
472,392,809.70x = 708,589,214.55 × 455,174,121.30 - Step 4: Simplify right side
472,392,809.70x = 322,531,473,095,453,440 - Step 5: Solve for x
x = 322,531,473,095,453,440/472,392,809.70 - Step 6: Final answer
x = 682,761,181.95
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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.