Finding the Fourth Proportional to 419,346,391.98, 578,699,774.73 and 231,170,556
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Solution
The fourth proportional to 419,346,391.98, 578,699,774.73 and 231,170,556 is: 319,016,334.09
Step by Step Solution
- Step 1: Write the proportion equation
419,346,391.98 : 578,699,774.73 = 231,170,556 : x - Step 2: Convert to fraction form
419,346,391.98/578,699,774.73 = 231,170,556/x - Step 3: Cross multiply
419,346,391.98x = 578,699,774.73 × 231,170,556 - Step 4: Simplify right side
419,346,391.98x = 133,778,348,681,408,848 - Step 5: Solve for x
x = 133,778,348,681,408,848/419,346,391.98 - Step 6: Final answer
x = 319,016,334.09
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.