Finding the Fourth Proportional to 1,124,039,188.64, 1,551,192,444.80 and 615,393,416.15
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Solution
The fourth proportional to 1,124,039,188.64, 1,551,192,444.80 and 615,393,416.15 is: 849,252,968.54
Step by Step Solution
- Step 1: Write the proportion equation
1,124,039,188.64 : 1,551,192,444.80 = 615,393,416.15 : x - Step 2: Convert to fraction form
1,124,039,188.64/1,551,192,444.80 = 615,393,416.15/x - Step 3: Cross multiply
1,124,039,188.64x = 1,551,192,444.80 × 615,393,416.15 - Step 4: Simplify right side
1,124,039,188.64x = 954,593,617,703,786,240 - Step 5: Solve for x
x = 954,593,617,703,786,240/1,124,039,188.64 - Step 6: Final answer
x = 849,252,968.54
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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.