Finding the Fourth Proportional to 10,859,153.60, 16,288,730.40 and 7,221,735.20
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Solution
The fourth proportional to 10,859,153.60, 16,288,730.40 and 7,221,735.20 is: 10,832,602.80
Step by Step Solution
- Step 1: Write the proportion equation
10,859,153.60 : 16,288,730.40 = 7,221,735.20 : x - Step 2: Convert to fraction form
10,859,153.60/16,288,730.40 = 7,221,735.20/x - Step 3: Cross multiply
10,859,153.60x = 16,288,730.40 × 7,221,735.20 - Step 4: Simplify right side
10,859,153.60x = 117,632,897,692,990.08 - Step 5: Solve for x
x = 117,632,897,692,990.08/10,859,153.60 - Step 6: Final answer
x = 10,832,602.80
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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.