Finding the Fourth Proportional to 896,860,900.20, 1,345,291,350.30 and 664,408,606.80
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Solution
The fourth proportional to 896,860,900.20, 1,345,291,350.30 and 664,408,606.80 is: 996,612,910.20
Step by Step Solution
- Step 1: Write the proportion equation
896,860,900.20 : 1,345,291,350.30 = 664,408,606.80 : x - Step 2: Convert to fraction form
896,860,900.20/1,345,291,350.30 = 664,408,606.80/x - Step 3: Cross multiply
896,860,900.20x = 1,345,291,350.30 × 664,408,606.80 - Step 4: Simplify right side
896,860,900.20x = 893,823,151,792,913,664 - Step 5: Solve for x
x = 893,823,151,792,913,664/896,860,900.20 - Step 6: Final answer
x = 996,612,910.20
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Double scale
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Similar ratio
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1.5x scale
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.