Finding the Fourth Proportional to 19,104,037.70, 28,656,056.55 and 12,726,745.70
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Solution
The fourth proportional to 19,104,037.70, 28,656,056.55 and 12,726,745.70 is: 19,090,118.55
Step by Step Solution
- Step 1: Write the proportion equation
19,104,037.70 : 28,656,056.55 = 12,726,745.70 : x - Step 2: Convert to fraction form
19,104,037.70/28,656,056.55 = 12,726,745.70/x - Step 3: Cross multiply
19,104,037.70x = 28,656,056.55 × 12,726,745.70 - Step 4: Simplify right side
19,104,037.70x = 364,698,344,476,669.31 - Step 5: Solve for x
x = 364,698,344,476,669.31/19,104,037.70 - Step 6: Final answer
x = 19,090,118.55
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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.