Finding the Fourth Proportional to 19,937,551.60, 29,904,772.20 and 7,804,658.80
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Solution
The fourth proportional to 19,937,551.60, 29,904,772.20 and 7,804,658.80 is: 11,706,379.41
Step by Step Solution
- Step 1: Write the proportion equation
19,937,551.60 : 29,904,772.20 = 7,804,658.80 : x - Step 2: Convert to fraction form
19,937,551.60/29,904,772.20 = 7,804,658.80/x - Step 3: Cross multiply
19,937,551.60x = 29,904,772.20 × 7,804,658.80 - Step 4: Simplify right side
19,937,551.60x = 233,396,543,512,725.34 - Step 5: Solve for x
x = 233,396,543,512,725.34/19,937,551.60 - Step 6: Final answer
x = 11,706,379.41
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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.