Finding the Fourth Proportional to 881,900,021.36, 1,217,012,371.08 and 485,414,534
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Solution
The fourth proportional to 881,900,021.36, 1,217,012,371.08 and 485,414,534 is: 669,866,740.75
Step by Step Solution
- Step 1: Write the proportion equation
881,900,021.36 : 1,217,012,371.08 = 485,414,534 : x - Step 2: Convert to fraction form
881,900,021.36/1,217,012,371.08 = 485,414,534/x - Step 3: Cross multiply
881,900,021.36x = 1,217,012,371.08 × 485,414,534 - Step 4: Simplify right side
881,900,021.36x = 590,755,492,980,033,280 - Step 5: Solve for x
x = 590,755,492,980,033,280/881,900,021.36 - Step 6: Final answer
x = 669,866,740.75
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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.