Finding the Fourth Proportional to 10,208,423.20, 15,335,444.40 and 8,528,807.20
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Solution
The fourth proportional to 10,208,423.20, 15,335,444.40 and 8,528,807.20 is: 12,812,267.48
Step by Step Solution
- Step 1: Write the proportion equation
10,208,423.20 : 15,335,444.40 = 8,528,807.20 : x - Step 2: Convert to fraction form
10,208,423.20/15,335,444.40 = 8,528,807.20/x - Step 3: Cross multiply
10,208,423.20x = 15,335,444.40 × 8,528,807.20 - Step 4: Simplify right side
10,208,423.20x = 130,793,048,613,919.67 - Step 5: Solve for x
x = 130,793,048,613,919.67/10,208,423.20 - Step 6: Final answer
x = 12,812,267.48
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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.