Finding the Fourth Proportional to 70,982,450.12, 97,956,076.35 and 38,387,402.12
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Solution
The fourth proportional to 70,982,450.12, 97,956,076.35 and 38,387,402.12 is: 52,974,774.56
Step by Step Solution
- Step 1: Write the proportion equation
70,982,450.12 : 97,956,076.35 = 38,387,402.12 : x - Step 2: Convert to fraction form
70,982,450.12/97,956,076.35 = 38,387,402.12/x - Step 3: Cross multiply
70,982,450.12x = 97,956,076.35 × 38,387,402.12 - Step 4: Simplify right side
70,982,450.12x = 3,760,279,292,944,871.50 - Step 5: Solve for x
x = 3,760,279,292,944,871.50/70,982,450.12 - Step 6: Final answer
x = 52,974,774.56
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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.