Finding the Fourth Proportional to 70,982,471.43, 97,956,105.68 and 38,387,423.43
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Solution
The fourth proportional to 70,982,471.43, 97,956,105.68 and 38,387,423.43 is: 52,974,803.92
Step by Step Solution
- Step 1: Write the proportion equation
70,982,471.43 : 97,956,105.68 = 38,387,423.43 : x - Step 2: Convert to fraction form
70,982,471.43/97,956,105.68 = 38,387,423.43/x - Step 3: Cross multiply
70,982,471.43x = 97,956,105.68 × 38,387,423.43 - Step 4: Simplify right side
70,982,471.43x = 3,760,282,506,100,051 - Step 5: Solve for x
x = 3,760,282,506,100,051/70,982,471.43 - Step 6: Final answer
x = 52,974,803.92
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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.