Finding the Fourth Proportional to 865,754,349.20, 1,194,708,994.24 and 469,268,826.13
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Solution
The fourth proportional to 865,754,349.20, 1,194,708,994.24 and 469,268,826.13 is: 647,573,630.80
Step by Step Solution
- Step 1: Write the proportion equation
865,754,349.20 : 1,194,708,994.24 = 469,268,826.13 : x - Step 2: Convert to fraction form
865,754,349.20/1,194,708,994.24 = 469,268,826.13/x - Step 3: Cross multiply
865,754,349.20x = 1,194,708,994.24 × 469,268,826.13 - Step 4: Simplify right side
865,754,349.20x = 560,639,687,285,637,824 - Step 5: Solve for x
x = 560,639,687,285,637,824/865,754,349.20 - Step 6: Final answer
x = 647,573,630.80
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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.