Finding the Fourth Proportional to 502,110,383.12, 692,894,655.80 and 276,047,720.88
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Solution
The fourth proportional to 502,110,383.12, 692,894,655.80 and 276,047,720.88 is: 380,936,138.69
Step by Step Solution
- Step 1: Write the proportion equation
502,110,383.12 : 692,894,655.80 = 276,047,720.88 : x - Step 2: Convert to fraction form
502,110,383.12/692,894,655.80 = 276,047,720.88/x - Step 3: Cross multiply
502,110,383.12x = 692,894,655.80 × 276,047,720.88 - Step 4: Simplify right side
502,110,383.12x = 191,271,990,543,522,048 - Step 5: Solve for x
x = 191,271,990,543,522,048/502,110,383.12 - Step 6: Final answer
x = 380,936,138.69
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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.