Finding the Fourth Proportional to 1,490,190,376.20, 2,235,285,564.30 and 1,466,003,905.80
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Solution
The fourth proportional to 1,490,190,376.20, 2,235,285,564.30 and 1,466,003,905.80 is: 2,199,005,858.70
Step by Step Solution
- Step 1: Write the proportion equation
1,490,190,376.20 : 2,235,285,564.30 = 1,466,003,905.80 : x - Step 2: Convert to fraction form
1,490,190,376.20/2,235,285,564.30 = 1,466,003,905.80/x - Step 3: Cross multiply
1,490,190,376.20x = 2,235,285,564.30 × 1,466,003,905.80 - Step 4: Simplify right side
1,490,190,376.20x = 3,276,937,367,842,157,056 - Step 5: Solve for x
x = 3,276,937,367,842,157,056/1,490,190,376.20 - Step 6: Final answer
x = 2,199,005,858.70
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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.