Finding the Fourth Proportional to 140,940,421.20, 211,410,631.80 and 48,823,981.20
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Solution
The fourth proportional to 140,940,421.20, 211,410,631.80 and 48,823,981.20 is: 73,235,971.80
Step by Step Solution
- Step 1: Write the proportion equation
140,940,421.20 : 211,410,631.80 = 48,823,981.20 : x - Step 2: Convert to fraction form
140,940,421.20/211,410,631.80 = 48,823,981.20/x - Step 3: Cross multiply
140,940,421.20x = 211,410,631.80 × 48,823,981.20 - Step 4: Simplify right side
140,940,421.20x = 10,321,908,712,483,324 - Step 5: Solve for x
x = 10,321,908,712,483,324/140,940,421.20 - Step 6: Final answer
x = 73,235,971.80
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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.