Finding the Fourth Proportional to 472,392,495.70, 708,588,743.55 and 355,995,106.90
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Solution
The fourth proportional to 472,392,495.70, 708,588,743.55 and 355,995,106.90 is: 533,992,660.35
Step by Step Solution
- Step 1: Write the proportion equation
472,392,495.70 : 708,588,743.55 = 355,995,106.90 : x - Step 2: Convert to fraction form
472,392,495.70/708,588,743.55 = 355,995,106.90/x - Step 3: Cross multiply
472,392,495.70x = 708,588,743.55 × 355,995,106.90 - Step 4: Simplify right side
472,392,495.70x = 252,254,125,508,218,912 - Step 5: Solve for x
x = 252,254,125,508,218,912/472,392,495.70 - Step 6: Final answer
x = 533,992,660.35
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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.