Finding the Fourth Proportional to 355,919,232.20, 533,878,848.30 and 279,478,041.80
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Solution
The fourth proportional to 355,919,232.20, 533,878,848.30 and 279,478,041.80 is: 419,217,062.70
Step by Step Solution
- Step 1: Write the proportion equation
355,919,232.20 : 533,878,848.30 = 279,478,041.80 : x - Step 2: Convert to fraction form
355,919,232.20/533,878,848.30 = 279,478,041.80/x - Step 3: Cross multiply
355,919,232.20x = 533,878,848.30 × 279,478,041.80 - Step 4: Simplify right side
355,919,232.20x = 149,207,415,081,323,264 - Step 5: Solve for x
x = 149,207,415,081,323,264/355,919,232.20 - Step 6: Final answer
x = 419,217,062.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.