Finding the Fourth Proportional to 655,332,871.68, 904,342,095.36 and 361,971,141.12
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Solution
The fourth proportional to 655,332,871.68, 904,342,095.36 and 361,971,141.12 is: 499,510,637.06
Step by Step Solution
- Step 1: Write the proportion equation
655,332,871.68 : 904,342,095.36 = 361,971,141.12 : x - Step 2: Convert to fraction form
655,332,871.68/904,342,095.36 = 361,971,141.12/x - Step 3: Cross multiply
655,332,871.68x = 904,342,095.36 × 361,971,141.12 - Step 4: Simplify right side
655,332,871.68x = 327,345,740,220,311,040 - Step 5: Solve for x
x = 327,345,740,220,311,040/655,332,871.68 - Step 6: Final answer
x = 499,510,637.06
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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.