Finding the Fourth Proportional to 478,797,610.05, 660,740,403.33 and 258,781,036.05
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Solution
The fourth proportional to 478,797,610.05, 660,740,403.33 and 258,781,036.05 is: 357,117,668.39
Step by Step Solution
- Step 1: Write the proportion equation
478,797,610.05 : 660,740,403.33 = 258,781,036.05 : x - Step 2: Convert to fraction form
478,797,610.05/660,740,403.33 = 258,781,036.05/x - Step 3: Cross multiply
478,797,610.05x = 660,740,403.33 × 258,781,036.05 - Step 4: Simplify right side
478,797,610.05x = 170,987,086,133,832,288 - Step 5: Solve for x
x = 170,987,086,133,832,288/478,797,610.05 - Step 6: Final answer
x = 357,117,668.39
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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.