Finding the Fourth Proportional to 13,116,957.79, 18,101,425.90 and 7,316,113.42
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Solution
The fourth proportional to 13,116,957.79, 18,101,425.90 and 7,316,113.42 is: 10,096,249.99
Step by Step Solution
- Step 1: Write the proportion equation
13,116,957.79 : 18,101,425.90 = 7,316,113.42 : x - Step 2: Convert to fraction form
13,116,957.79/18,101,425.90 = 7,316,113.42/x - Step 3: Cross multiply
13,116,957.79x = 18,101,425.90 × 7,316,113.42 - Step 4: Simplify right side
13,116,957.79x = 132,432,084,948,125.56 - Step 5: Solve for x
x = 132,432,084,948,125.56/13,116,957.79 - Step 6: Final answer
x = 10,096,249.99
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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.