Finding the Fourth Proportional to 8,742,085.20, 13,124,937.60 and 5,553,439.20
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Solution
The fourth proportional to 8,742,085.20, 13,124,937.60 and 5,553,439.20 is: 8,337,661.02
Step by Step Solution
- Step 1: Write the proportion equation
8,742,085.20 : 13,124,937.60 = 5,553,439.20 : x - Step 2: Convert to fraction form
8,742,085.20/13,124,937.60 = 5,553,439.20/x - Step 3: Cross multiply
8,742,085.20x = 13,124,937.60 × 5,553,439.20 - Step 4: Simplify right side
8,742,085.20x = 72,888,542,965,393.92 - Step 5: Solve for x
x = 72,888,542,965,393.92/8,742,085.20 - Step 6: Final answer
x = 8,337,661.02
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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.