Finding the Fourth Proportional to 426,497,600.18, 639,982,465.07 and 208,149,750.92
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Solution
The fourth proportional to 426,497,600.18, 639,982,465.07 and 208,149,750.92 is: 312,339,836.48
Step by Step Solution
- Step 1: Write the proportion equation
426,497,600.18 : 639,982,465.07 = 208,149,750.92 : x - Step 2: Convert to fraction form
426,497,600.18/639,982,465.07 = 208,149,750.92/x - Step 3: Cross multiply
426,497,600.18x = 639,982,465.07 × 208,149,750.92 - Step 4: Simplify right side
426,497,600.18x = 133,212,190,698,047,328 - Step 5: Solve for x
x = 133,212,190,698,047,328/426,497,600.18 - Step 6: Final answer
x = 312,339,836.48
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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.