Finding the Fourth Proportional to 19,761,517.70, 29,642,276.55 and 16,402,285.70
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Solution
The fourth proportional to 19,761,517.70, 29,642,276.55 and 16,402,285.70 is: 24,603,428.55
Step by Step Solution
- Step 1: Write the proportion equation
19,761,517.70 : 29,642,276.55 = 16,402,285.70 : x - Step 2: Convert to fraction form
19,761,517.70/29,642,276.55 = 16,402,285.70/x - Step 3: Cross multiply
19,761,517.70x = 29,642,276.55 × 16,402,285.70 - Step 4: Simplify right side
19,761,517.70x = 486,201,088,771,510.31 - Step 5: Solve for x
x = 486,201,088,771,510.31/19,761,517.70 - Step 6: Final answer
x = 24,603,428.55
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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.