Finding the Fourth Proportional to 708,620,497.80, 1,062,930,746.70 and 248,392,591.80
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Solution
The fourth proportional to 708,620,497.80, 1,062,930,746.70 and 248,392,591.80 is: 372,588,887.70
Step by Step Solution
- Step 1: Write the proportion equation
708,620,497.80 : 1,062,930,746.70 = 248,392,591.80 : x - Step 2: Convert to fraction form
708,620,497.80/1,062,930,746.70 = 248,392,591.80/x - Step 3: Cross multiply
708,620,497.80x = 1,062,930,746.70 × 248,392,591.80 - Step 4: Simplify right side
708,620,497.80x = 264,024,123,076,722,336 - Step 5: Solve for x
x = 264,024,123,076,722,336/708,620,497.80 - Step 6: Final answer
x = 372,588,887.70
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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.