Finding the Fourth Proportional to 28,157,725.44, 38,857,656.96 and 15,280,669.44
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Solution
The fourth proportional to 28,157,725.44, 38,857,656.96 and 15,280,669.44 is: 21,087,321.58
Step by Step Solution
- Step 1: Write the proportion equation
28,157,725.44 : 38,857,656.96 = 15,280,669.44 : x - Step 2: Convert to fraction form
28,157,725.44/38,857,656.96 = 15,280,669.44/x - Step 3: Cross multiply
28,157,725.44x = 38,857,656.96 × 15,280,669.44 - Step 4: Simplify right side
28,157,725.44x = 593,771,011,218,675.25 - Step 5: Solve for x
x = 593,771,011,218,675.25/28,157,725.44 - Step 6: Final answer
x = 21,087,321.58
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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.