Finding the Fourth Proportional to 53,014,276.80, 79,521,415.20 and 39,409,387.20
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Solution
The fourth proportional to 53,014,276.80, 79,521,415.20 and 39,409,387.20 is: 59,114,080.80
Step by Step Solution
- Step 1: Write the proportion equation
53,014,276.80 : 79,521,415.20 = 39,409,387.20 : x - Step 2: Convert to fraction form
53,014,276.80/79,521,415.20 = 39,409,387.20/x - Step 3: Cross multiply
53,014,276.80x = 79,521,415.20 × 39,409,387.20 - Step 4: Simplify right side
53,014,276.80x = 3,133,890,242,308,766 - Step 5: Solve for x
x = 3,133,890,242,308,766/53,014,276.80 - Step 6: Final answer
x = 59,114,080.80
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1.5x scale
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.