Finding the Fourth Proportional to 47,389,419.99, 71,086,885.65 and 13,313,423.07
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Solution
The fourth proportional to 47,389,419.99, 71,086,885.65 and 13,313,423.07 is: 19,970,908.77
Step by Step Solution
- Step 1: Write the proportion equation
47,389,419.99 : 71,086,885.65 = 13,313,423.07 : x - Step 2: Convert to fraction form
47,389,419.99/71,086,885.65 = 13,313,423.07/x - Step 3: Cross multiply
47,389,419.99x = 71,086,885.65 × 13,313,423.07 - Step 4: Simplify right side
47,389,419.99x = 946,409,783,387,162 - Step 5: Solve for x
x = 946,409,783,387,162/47,389,419.99 - Step 6: Final answer
x = 19,970,908.77
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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.