Finding the Fourth Proportional to 696,225,106.36, 960,861,118.44 and 398,906,786.08
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Solution
The fourth proportional to 696,225,106.36, 960,861,118.44 and 398,906,786.08 is: 550,531,742.00
Step by Step Solution
- Step 1: Write the proportion equation
696,225,106.36 : 960,861,118.44 = 398,906,786.08 : x - Step 2: Convert to fraction form
696,225,106.36/960,861,118.44 = 398,906,786.08/x - Step 3: Cross multiply
696,225,106.36x = 960,861,118.44 × 398,906,786.08 - Step 4: Simplify right side
696,225,106.36x = 383,294,020,626,134,656 - Step 5: Solve for x
x = 383,294,020,626,134,656/696,225,106.36 - Step 6: Final answer
x = 550,531,742.00
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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.