Finding the Fourth Proportional to 876,984,360.41, 1,209,940,478.19 and 500,370,391.99
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Solution
The fourth proportional to 876,984,360.41, 1,209,940,478.19 and 500,370,391.99 is: 690,341,149.38
Step by Step Solution
- Step 1: Write the proportion equation
876,984,360.41 : 1,209,940,478.19 = 500,370,391.99 : x - Step 2: Convert to fraction form
876,984,360.41/1,209,940,478.19 = 500,370,391.99/x - Step 3: Cross multiply
876,984,360.41x = 1,209,940,478.19 × 500,370,391.99 - Step 4: Simplify right side
876,984,360.41x = 605,418,391,353,473,536 - Step 5: Solve for x
x = 605,418,391,353,473,536/876,984,360.41 - Step 6: Final answer
x = 690,341,149.38
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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.