Finding the Fourth Proportional to 664,272,088.40, 996,408,132.60 and 354,335,697.20
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Solution
The fourth proportional to 664,272,088.40, 996,408,132.60 and 354,335,697.20 is: 531,503,545.80
Step by Step Solution
- Step 1: Write the proportion equation
664,272,088.40 : 996,408,132.60 = 354,335,697.20 : x - Step 2: Convert to fraction form
664,272,088.40/996,408,132.60 = 354,335,697.20/x - Step 3: Cross multiply
664,272,088.40x = 996,408,132.60 × 354,335,697.20 - Step 4: Simplify right side
664,272,088.40x = 353,062,970,360,571,072 - Step 5: Solve for x
x = 353,062,970,360,571,072/664,272,088.40 - Step 6: Final answer
x = 531,503,545.80
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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.