Finding the Fourth Proportional to 19,984,380.39, 29,931,169.71 and 15,639,351.99
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Solution
The fourth proportional to 19,984,380.39, 29,931,169.71 and 15,639,351.99 is: 23,423,498.22
Step by Step Solution
- Step 1: Write the proportion equation
19,984,380.39 : 29,931,169.71 = 15,639,351.99 : x - Step 2: Convert to fraction form
19,984,380.39/29,931,169.71 = 15,639,351.99/x - Step 3: Cross multiply
19,984,380.39x = 29,931,169.71 × 15,639,351.99 - Step 4: Simplify right side
19,984,380.39x = 468,104,098,567,116.25 - Step 5: Solve for x
x = 468,104,098,567,116.25/19,984,380.39 - Step 6: Final answer
x = 23,423,498.22
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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.