Finding the Fourth Proportional to 342,957,009.72, 473,271,459.48 and 201,836,533.08
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Solution
The fourth proportional to 342,957,009.72, 473,271,459.48 and 201,836,533.08 is: 278,528,993.08
Step by Step Solution
- Step 1: Write the proportion equation
342,957,009.72 : 473,271,459.48 = 201,836,533.08 : x - Step 2: Convert to fraction form
342,957,009.72/473,271,459.48 = 201,836,533.08/x - Step 3: Cross multiply
342,957,009.72x = 473,271,459.48 × 201,836,533.08 - Step 4: Simplify right side
342,957,009.72x = 95,523,470,587,154,912 - Step 5: Solve for x
x = 95,523,470,587,154,912/342,957,009.72 - Step 6: Final answer
x = 278,528,993.08
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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.