Finding the Fourth Proportional to 69,664,144.30, 96,138,368.58 and 38,303,515.78
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Solution
The fourth proportional to 69,664,144.30, 96,138,368.58 and 38,303,515.78 is: 52,859,868.66
Step by Step Solution
- Step 1: Write the proportion equation
69,664,144.30 : 96,138,368.58 = 38,303,515.78 : x - Step 2: Convert to fraction form
69,664,144.30/96,138,368.58 = 38,303,515.78/x - Step 3: Cross multiply
69,664,144.30x = 96,138,368.58 × 38,303,515.78 - Step 4: Simplify right side
69,664,144.30x = 3,682,437,517,967,486 - Step 5: Solve for x
x = 3,682,437,517,967,486/69,664,144.30 - Step 6: Final answer
x = 52,859,868.66
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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.