Finding the Fourth Proportional to 257,493,670.32, 355,330,452.56 and 145,992,014.12
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Solution
The fourth proportional to 257,493,670.32, 355,330,452.56 and 145,992,014.12 is: 201,462,849.10
Step by Step Solution
- Step 1: Write the proportion equation
257,493,670.32 : 355,330,452.56 = 145,992,014.12 : x - Step 2: Convert to fraction form
257,493,670.32/355,330,452.56 = 145,992,014.12/x - Step 3: Cross multiply
257,493,670.32x = 355,330,452.56 × 145,992,014.12 - Step 4: Simplify right side
257,493,670.32x = 51,875,408,447,405,512 - Step 5: Solve for x
x = 51,875,408,447,405,512/257,493,670.32 - Step 6: Final answer
x = 201,462,849.10
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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.