Finding the Fourth Proportional to 48,385,434.70, 72,578,152.05 and 12,483,642.70
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Solution
The fourth proportional to 48,385,434.70, 72,578,152.05 and 12,483,642.70 is: 18,725,464.05
Step by Step Solution
- Step 1: Write the proportion equation
48,385,434.70 : 72,578,152.05 = 12,483,642.70 : x - Step 2: Convert to fraction form
48,385,434.70/72,578,152.05 = 12,483,642.70/x - Step 3: Cross multiply
48,385,434.70x = 72,578,152.05 × 12,483,642.70 - Step 4: Simplify right side
48,385,434.70x = 906,039,718,018,472.50 - Step 5: Solve for x
x = 906,039,718,018,472.50/48,385,434.70 - Step 6: Final answer
x = 18,725,464.05
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Similar ratio
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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.