Finding the Fourth Proportional to 2,898,262,359.80, 4,347,393,539.70 and 959,565,591.80
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Solution
The fourth proportional to 2,898,262,359.80, 4,347,393,539.70 and 959,565,591.80 is: 1,439,348,387.70
Step by Step Solution
- Step 1: Write the proportion equation
2,898,262,359.80 : 4,347,393,539.70 = 959,565,591.80 : x - Step 2: Convert to fraction form
2,898,262,359.80/4,347,393,539.70 = 959,565,591.80/x - Step 3: Cross multiply
2,898,262,359.80x = 4,347,393,539.70 × 959,565,591.80 - Step 4: Simplify right side
2,898,262,359.80x = 4,171,609,254,709,726,720 - Step 5: Solve for x
x = 4,171,609,254,709,726,720/2,898,262,359.80 - Step 6: Final answer
x = 1,439,348,387.70
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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.