Finding the Fourth Proportional to 844,955,640.80, 1,267,433,461.20 and 814,344,639.20
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Solution
The fourth proportional to 844,955,640.80, 1,267,433,461.20 and 814,344,639.20 is: 1,221,516,958.80
Step by Step Solution
- Step 1: Write the proportion equation
844,955,640.80 : 1,267,433,461.20 = 814,344,639.20 : x - Step 2: Convert to fraction form
844,955,640.80/1,267,433,461.20 = 814,344,639.20/x - Step 3: Cross multiply
844,955,640.80x = 1,267,433,461.20 × 814,344,639.20 - Step 4: Simplify right side
844,955,640.80x = 1,032,127,644,670,921,344 - Step 5: Solve for x
x = 1,032,127,644,670,921,344/844,955,640.80 - Step 6: Final answer
x = 1,221,516,958.80
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.