Finding the Fourth Proportional to 1,079,285,095.20, 1,489,423,699.68 and 633,256,047.12
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Solution
The fourth proportional to 1,079,285,095.20, 1,489,423,699.68 and 633,256,047.12 is: 873,899,369.82
Step by Step Solution
- Step 1: Write the proportion equation
1,079,285,095.20 : 1,489,423,699.68 = 633,256,047.12 : x - Step 2: Convert to fraction form
1,079,285,095.20/1,489,423,699.68 = 633,256,047.12/x - Step 3: Cross multiply
1,079,285,095.20x = 1,489,423,699.68 × 633,256,047.12 - Step 4: Simplify right side
1,079,285,095.20x = 943,186,564,546,202,880 - Step 5: Solve for x
x = 943,186,564,546,202,880/1,079,285,095.20 - Step 6: Final answer
x = 873,899,369.82
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1.5x scale
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.