Finding the Fourth Proportional to 70,829,604.30, 97,743,860.36 and 39,468,975.07
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Solution
The fourth proportional to 70,829,604.30, 97,743,860.36 and 39,468,975.07 is: 54,466,631.94
Step by Step Solution
- Step 1: Write the proportion equation
70,829,604.30 : 97,743,860.36 = 39,468,975.07 : x - Step 2: Convert to fraction form
70,829,604.30/97,743,860.36 = 39,468,975.07/x - Step 3: Cross multiply
70,829,604.30x = 97,743,860.36 × 39,468,975.07 - Step 4: Simplify right side
70,829,604.30x = 3,857,849,987,867,245 - Step 5: Solve for x
x = 3,857,849,987,867,245/70,829,604.30 - Step 6: Final answer
x = 54,466,631.94
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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.