Finding the Fourth Proportional to 47,389,420.74, 71,086,886.73 and 13,313,423.82
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Solution
The fourth proportional to 47,389,420.74, 71,086,886.73 and 13,313,423.82 is: 19,970,909.88
Step by Step Solution
- Step 1: Write the proportion equation
47,389,420.74 : 71,086,886.73 = 13,313,423.82 : x - Step 2: Convert to fraction form
47,389,420.74/71,086,886.73 = 13,313,423.82/x - Step 3: Cross multiply
47,389,420.74x = 71,086,886.73 × 13,313,423.82 - Step 4: Simplify right side
47,389,420.74x = 946,409,851,080,824 - Step 5: Solve for x
x = 946,409,851,080,824/47,389,420.74 - Step 6: Final answer
x = 19,970,909.88
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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.