Finding the Fourth Proportional to 816,124,761.60, 1,226,575,929.60 and 711,018,124.80
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Solution
The fourth proportional to 816,124,761.60, 1,226,575,929.60 and 711,018,124.80 is: 1,068,608,328.56
Step by Step Solution
- Step 1: Write the proportion equation
816,124,761.60 : 1,226,575,929.60 = 711,018,124.80 : x - Step 2: Convert to fraction form
816,124,761.60/1,226,575,929.60 = 711,018,124.80/x - Step 3: Cross multiply
816,124,761.60x = 1,226,575,929.60 × 711,018,124.80 - Step 4: Simplify right side
816,124,761.60x = 872,117,717,389,008,640 - Step 5: Solve for x
x = 872,117,717,389,008,640/816,124,761.60 - Step 6: Final answer
x = 1,068,608,328.56
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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.