Finding the Fourth Proportional to 19,584,064.80, 29,376,097.20 and 8,237,325.60
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Solution
The fourth proportional to 19,584,064.80, 29,376,097.20 and 8,237,325.60 is: 12,355,988.40
Step by Step Solution
- Step 1: Write the proportion equation
19,584,064.80 : 29,376,097.20 = 8,237,325.60 : x - Step 2: Convert to fraction form
19,584,064.80/29,376,097.20 = 8,237,325.60/x - Step 3: Cross multiply
19,584,064.80x = 29,376,097.20 × 8,237,325.60 - Step 4: Simplify right side
19,584,064.80x = 241,980,477,493,648.31 - Step 5: Solve for x
x = 241,980,477,493,648.31/19,584,064.80 - Step 6: Final answer
x = 12,355,988.40
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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.