Finding the Fourth Proportional to 268,272,277.20, 402,408,415.80 and 176,439,272.40
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Solution
The fourth proportional to 268,272,277.20, 402,408,415.80 and 176,439,272.40 is: 264,658,908.60
Step by Step Solution
- Step 1: Write the proportion equation
268,272,277.20 : 402,408,415.80 = 176,439,272.40 : x - Step 2: Convert to fraction form
268,272,277.20/402,408,415.80 = 176,439,272.40/x - Step 3: Cross multiply
268,272,277.20x = 402,408,415.80 × 176,439,272.40 - Step 4: Simplify right side
268,272,277.20x = 71,000,648,091,388,672 - Step 5: Solve for x
x = 71,000,648,091,388,672/268,272,277.20 - Step 6: Final answer
x = 264,658,908.60
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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.