Finding the Fourth Proportional to 257,768,067.54, 355,727,486.94 and 140,301,006.12
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Solution
The fourth proportional to 257,768,067.54, 355,727,486.94 and 140,301,006.12 is: 193,619,499.88
Step by Step Solution
- Step 1: Write the proportion equation
257,768,067.54 : 355,727,486.94 = 140,301,006.12 : x - Step 2: Convert to fraction form
257,768,067.54/355,727,486.94 = 140,301,006.12/x - Step 3: Cross multiply
257,768,067.54x = 355,727,486.94 × 140,301,006.12 - Step 4: Simplify right side
257,768,067.54x = 49,908,924,322,221,160 - Step 5: Solve for x
x = 49,908,924,322,221,160/257,768,067.54 - Step 6: Final answer
x = 193,619,499.88
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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.