Finding the Fourth Proportional to 993,460,235.80, 1,490,190,353.70 and 977,335,922.20
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Solution
The fourth proportional to 993,460,235.80, 1,490,190,353.70 and 977,335,922.20 is: 1,466,003,883.30
Step by Step Solution
- Step 1: Write the proportion equation
993,460,235.80 : 1,490,190,353.70 = 977,335,922.20 : x - Step 2: Convert to fraction form
993,460,235.80/1,490,190,353.70 = 977,335,922.20/x - Step 3: Cross multiply
993,460,235.80x = 1,490,190,353.70 × 977,335,922.20 - Step 4: Simplify right side
993,460,235.80x = 1,456,416,563,586,933,760 - Step 5: Solve for x
x = 1,456,416,563,586,933,760/993,460,235.80 - Step 6: Final answer
x = 1,466,003,883.30
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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.