Finding the Fourth Proportional to 7,102,487.20, 10,653,730.80 and 3,113,399.20
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Solution
The fourth proportional to 7,102,487.20, 10,653,730.80 and 3,113,399.20 is: 4,670,098.80
Step by Step Solution
- Step 1: Write the proportion equation
7,102,487.20 : 10,653,730.80 = 3,113,399.20 : x - Step 2: Convert to fraction form
7,102,487.20/10,653,730.80 = 3,113,399.20/x - Step 3: Cross multiply
7,102,487.20x = 10,653,730.80 × 3,113,399.20 - Step 4: Simplify right side
7,102,487.20x = 33,169,316,949,735.36 - Step 5: Solve for x
x = 33,169,316,949,735.36/7,102,487.20 - Step 6: Final answer
x = 4,670,098.80
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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.