Finding the Fourth Proportional to 138,102,288.45, 207,244,925.50 and 75,897,044.13
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Solution
The fourth proportional to 138,102,288.45, 207,244,925.50 and 75,897,044.13 is: 113,895,848.02
Step by Step Solution
- Step 1: Write the proportion equation
138,102,288.45 : 207,244,925.50 = 75,897,044.13 : x - Step 2: Convert to fraction form
138,102,288.45/207,244,925.50 = 75,897,044.13/x - Step 3: Cross multiply
138,102,288.45x = 207,244,925.50 × 75,897,044.13 - Step 4: Simplify right side
138,102,288.45x = 15,729,277,256,392,062 - Step 5: Solve for x
x = 15,729,277,256,392,062/138,102,288.45 - Step 6: Final answer
x = 113,895,848.02
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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.