Finding the Fourth Proportional to 149,964,968.07, 206,868,344.58 and 87,234,004.13
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Solution
The fourth proportional to 149,964,968.07, 206,868,344.58 and 87,234,004.13 is: 120,334,463.82
Step by Step Solution
- Step 1: Write the proportion equation
149,964,968.07 : 206,868,344.58 = 87,234,004.13 : x - Step 2: Convert to fraction form
149,964,968.07/206,868,344.58 = 87,234,004.13/x - Step 3: Cross multiply
149,964,968.07x = 206,868,344.58 × 87,234,004.13 - Step 4: Simplify right side
149,964,968.07x = 18,045,954,024,423,644 - Step 5: Solve for x
x = 18,045,954,024,423,644/149,964,968.07 - Step 6: Final answer
x = 120,334,463.82
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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.