Finding the Fourth Proportional to 1,522,465,025.99, 2,101,439,612.80 and 919,539,880.00
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Solution
The fourth proportional to 1,522,465,025.99, 2,101,439,612.80 and 919,539,880.00 is: 1,269,229,503.72
Step by Step Solution
- Step 1: Write the proportion equation
1,522,465,025.99 : 2,101,439,612.80 = 919,539,880.00 : x - Step 2: Convert to fraction form
1,522,465,025.99/2,101,439,612.80 = 919,539,880.00/x - Step 3: Cross multiply
1,522,465,025.99x = 2,101,439,612.80 × 919,539,880.00 - Step 4: Simplify right side
1,522,465,025.99x = 1,932,357,529,374,633,472 - Step 5: Solve for x
x = 1,932,357,529,374,633,472/1,522,465,025.99 - Step 6: Final answer
x = 1,269,229,503.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.