Finding the Fourth Proportional to 266,280,349.20, 399,420,523.80 and 122,953,117.20
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Solution
The fourth proportional to 266,280,349.20, 399,420,523.80 and 122,953,117.20 is: 184,429,675.80
Step by Step Solution
- Step 1: Write the proportion equation
266,280,349.20 : 399,420,523.80 = 122,953,117.20 : x - Step 2: Convert to fraction form
266,280,349.20/399,420,523.80 = 122,953,117.20/x - Step 3: Cross multiply
266,280,349.20x = 399,420,523.80 × 122,953,117.20 - Step 4: Simplify right side
266,280,349.20x = 49,109,998,474,866,792 - Step 5: Solve for x
x = 49,109,998,474,866,792/266,280,349.20 - Step 6: Final answer
x = 184,429,675.80
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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.