Finding the Fourth Proportional to 73,953,007.20, 110,929,510.80 and 69,134,608.80
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Solution
The fourth proportional to 73,953,007.20, 110,929,510.80 and 69,134,608.80 is: 103,701,913.20
Step by Step Solution
- Step 1: Write the proportion equation
73,953,007.20 : 110,929,510.80 = 69,134,608.80 : x - Step 2: Convert to fraction form
73,953,007.20/110,929,510.80 = 69,134,608.80/x - Step 3: Cross multiply
73,953,007.20x = 110,929,510.80 × 69,134,608.80 - Step 4: Simplify right side
73,953,007.20x = 7,669,068,333,533,375 - Step 5: Solve for x
x = 7,669,068,333,533,375/73,953,007.20 - Step 6: Final answer
x = 103,701,913.20
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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.