Finding the Fourth Proportional to 549,121,138.99, 757,801,970.09 and 323,075,901.45
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Solution
The fourth proportional to 549,121,138.99, 757,801,970.09 and 323,075,901.45 is: 445,853,450.58
Step by Step Solution
- Step 1: Write the proportion equation
549,121,138.99 : 757,801,970.09 = 323,075,901.45 : x - Step 2: Convert to fraction form
549,121,138.99/757,801,970.09 = 323,075,901.45/x - Step 3: Cross multiply
549,121,138.99x = 757,801,970.09 × 323,075,901.45 - Step 4: Simplify right side
549,121,138.99x = 244,827,554,607,412,704 - Step 5: Solve for x
x = 244,827,554,607,412,704/549,121,138.99 - Step 6: Final answer
x = 445,853,450.58
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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.