Finding the Fourth Proportional to 79,349,734.80, 119,024,602.20 and 21,850,880.40
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Solution
The fourth proportional to 79,349,734.80, 119,024,602.20 and 21,850,880.40 is: 32,776,320.60
Step by Step Solution
- Step 1: Write the proportion equation
79,349,734.80 : 119,024,602.20 = 21,850,880.40 : x - Step 2: Convert to fraction form
79,349,734.80/119,024,602.20 = 21,850,880.40/x - Step 3: Cross multiply
79,349,734.80x = 119,024,602.20 × 21,850,880.40 - Step 4: Simplify right side
79,349,734.80x = 2,600,792,347,329,777 - Step 5: Solve for x
x = 2,600,792,347,329,777/79,349,734.80 - Step 6: Final answer
x = 32,776,320.60
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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.