Finding the Fourth Proportional to 1,022,822,725.92, 1,411,879,207.16 and 670,421,426.68
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Solution
The fourth proportional to 1,022,822,725.92, 1,411,879,207.16 and 670,421,426.68 is: 925,433,164.88
Step by Step Solution
- Step 1: Write the proportion equation
1,022,822,725.92 : 1,411,879,207.16 = 670,421,426.68 : x - Step 2: Convert to fraction form
1,022,822,725.92/1,411,879,207.16 = 670,421,426.68/x - Step 3: Cross multiply
1,022,822,725.92x = 1,411,879,207.16 × 670,421,426.68 - Step 4: Simplify right side
1,022,822,725.92x = 946,554,072,364,034,432 - Step 5: Solve for x
x = 946,554,072,364,034,432/1,022,822,725.92 - Step 6: Final answer
x = 925,433,164.88
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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.