Finding the Fourth Proportional to 526,075,480.81, 725,985,575.45 and 291,142,342.09
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Solution
The fourth proportional to 526,075,480.81, 725,985,575.45 and 291,142,342.09 is: 401,777,213.48
Step by Step Solution
- Step 1: Write the proportion equation
526,075,480.81 : 725,985,575.45 = 291,142,342.09 : x - Step 2: Convert to fraction form
526,075,480.81/725,985,575.45 = 291,142,342.09/x - Step 3: Cross multiply
526,075,480.81x = 725,985,575.45 × 291,142,342.09 - Step 4: Simplify right side
526,075,480.81x = 211,365,140,760,069,408 - Step 5: Solve for x
x = 211,365,140,760,069,408/526,075,480.81 - Step 6: Final answer
x = 401,777,213.48
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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.