Finding the Fourth Proportional to 245,902,724.62, 339,346,090.65 and 141,478,701.55
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Solution
The fourth proportional to 245,902,724.62, 339,346,090.65 and 141,478,701.55 is: 195,240,798.39
Step by Step Solution
- Step 1: Write the proportion equation
245,902,724.62 : 339,346,090.65 = 141,478,701.55 : x - Step 2: Convert to fraction form
245,902,724.62/339,346,090.65 = 141,478,701.55/x - Step 3: Cross multiply
245,902,724.62x = 339,346,090.65 × 141,478,701.55 - Step 4: Simplify right side
245,902,724.62x = 48,010,244,281,230,600 - Step 5: Solve for x
x = 48,010,244,281,230,600/245,902,724.62 - Step 6: Final answer
x = 195,240,798.39
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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.