Finding the Fourth Proportional to 10,343,392.20, 15,487,094.70 and 8,103,904.20
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Solution
The fourth proportional to 10,343,392.20, 15,487,094.70 and 8,103,904.20 is: 12,133,923.70
Step by Step Solution
- Step 1: Write the proportion equation
10,343,392.20 : 15,487,094.70 = 8,103,904.20 : x - Step 2: Convert to fraction form
10,343,392.20/15,487,094.70 = 8,103,904.20/x - Step 3: Cross multiply
10,343,392.20x = 15,487,094.70 × 8,103,904.20 - Step 4: Simplify right side
10,343,392.20x = 125,505,931,785,127.73 - Step 5: Solve for x
x = 125,505,931,785,127.73/10,343,392.20 - Step 6: Final answer
x = 12,133,923.70
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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.