Finding the Fourth Proportional to 36,291,206.40, 54,435,643.20 and 12,031,252.80
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Solution
The fourth proportional to 36,291,206.40, 54,435,643.20 and 12,031,252.80 is: 18,046,492.52
Step by Step Solution
- Step 1: Write the proportion equation
36,291,206.40 : 54,435,643.20 = 12,031,252.80 : x - Step 2: Convert to fraction form
36,291,206.40/54,435,643.20 = 12,031,252.80/x - Step 3: Cross multiply
36,291,206.40x = 54,435,643.20 × 12,031,252.80 - Step 4: Simplify right side
36,291,206.40x = 654,928,984,669,801 - Step 5: Solve for x
x = 654,928,984,669,801/36,291,206.40 - Step 6: Final answer
x = 18,046,492.52
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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.