Finding the Fourth Proportional to 121,281,810.69, 167,368,898.76 and 69,075,704.07
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Solution
The fourth proportional to 121,281,810.69, 167,368,898.76 and 69,075,704.07 is: 95,324,471.62
Step by Step Solution
- Step 1: Write the proportion equation
121,281,810.69 : 167,368,898.76 = 69,075,704.07 : x - Step 2: Convert to fraction form
121,281,810.69/167,368,898.76 = 69,075,704.07/x - Step 3: Cross multiply
121,281,810.69x = 167,368,898.76 × 69,075,704.07 - Step 4: Simplify right side
121,281,810.69x = 11,561,124,521,267,548 - Step 5: Solve for x
x = 11,561,124,521,267,548/121,281,810.69 - Step 6: Final answer
x = 95,324,471.62
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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.