Finding the Fourth Proportional to 87,148,857.60, 130,723,286.40 and 26,564,486.40
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Solution
The fourth proportional to 87,148,857.60, 130,723,286.40 and 26,564,486.40 is: 39,846,729.60
Step by Step Solution
- Step 1: Write the proportion equation
87,148,857.60 : 130,723,286.40 = 26,564,486.40 : x - Step 2: Convert to fraction form
87,148,857.60/130,723,286.40 = 26,564,486.40/x - Step 3: Cross multiply
87,148,857.60x = 130,723,286.40 × 26,564,486.40 - Step 4: Simplify right side
87,148,857.60x = 3,472,596,963,736,105 - Step 5: Solve for x
x = 3,472,596,963,736,105/87,148,857.60 - Step 6: Final answer
x = 39,846,729.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.