Finding the Fourth Proportional to 14,284,657.76, 19,712,969.88 and 7,758,414.88
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Solution
The fourth proportional to 14,284,657.76, 19,712,969.88 and 7,758,414.88 is: 10,706,689.75
Step by Step Solution
- Step 1: Write the proportion equation
14,284,657.76 : 19,712,969.88 = 7,758,414.88 : x - Step 2: Convert to fraction form
14,284,657.76/19,712,969.88 = 7,758,414.88/x - Step 3: Cross multiply
14,284,657.76x = 19,712,969.88 × 7,758,414.88 - Step 4: Simplify right side
14,284,657.76x = 152,941,398,845,983.81 - Step 5: Solve for x
x = 152,941,398,845,983.81/14,284,657.76 - Step 6: Final answer
x = 10,706,689.75
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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.