Finding the Fourth Proportional to 268,272,000.20, 402,408,000.30 and 186,217,509.80
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Solution
The fourth proportional to 268,272,000.20, 402,408,000.30 and 186,217,509.80 is: 279,326,264.70
Step by Step Solution
- Step 1: Write the proportion equation
268,272,000.20 : 402,408,000.30 = 186,217,509.80 : x - Step 2: Convert to fraction form
268,272,000.20/402,408,000.30 = 186,217,509.80/x - Step 3: Cross multiply
268,272,000.20x = 402,408,000.30 × 186,217,509.80 - Step 4: Simplify right side
268,272,000.20x = 74,935,415,739,463,664 - Step 5: Solve for x
x = 74,935,415,739,463,664/268,272,000.20 - Step 6: Final answer
x = 279,326,264.70
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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.