Finding the Fourth Proportional to 629,878,220.40, 944,817,330.60 and 169,862,890.80
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Solution
The fourth proportional to 629,878,220.40, 944,817,330.60 and 169,862,890.80 is: 254,794,336.20
Step by Step Solution
- Step 1: Write the proportion equation
629,878,220.40 : 944,817,330.60 = 169,862,890.80 : x - Step 2: Convert to fraction form
629,878,220.40/944,817,330.60 = 169,862,890.80/x - Step 3: Cross multiply
629,878,220.40x = 944,817,330.60 × 169,862,890.80 - Step 4: Simplify right side
629,878,220.40x = 160,489,403,053,655,328 - Step 5: Solve for x
x = 160,489,403,053,655,328/629,878,220.40 - Step 6: Final answer
x = 254,794,336.20
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Similar ratio
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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.