Finding the Fourth Proportional to 13,958,439.16, 19,277,331.60 and 12,436,841.20
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Solution
The fourth proportional to 13,958,439.16, 19,277,331.60 and 12,436,841.20 is: 17,175,925.55
Step by Step Solution
- Step 1: Write the proportion equation
13,958,439.16 : 19,277,331.60 = 12,436,841.20 : x - Step 2: Convert to fraction form
13,958,439.16/19,277,331.60 = 12,436,841.20/x - Step 3: Cross multiply
13,958,439.16x = 19,277,331.60 × 12,436,841.20 - Step 4: Simplify right side
13,958,439.16x = 239,749,111,868,941.94 - Step 5: Solve for x
x = 239,749,111,868,941.94/13,958,439.16 - Step 6: Final answer
x = 17,175,925.55
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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.