Finding the Fourth Proportional to 290,331,830.80, 435,497,746.20 and 268,160,899.60
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Solution
The fourth proportional to 290,331,830.80, 435,497,746.20 and 268,160,899.60 is: 402,241,349.40
Step by Step Solution
- Step 1: Write the proportion equation
290,331,830.80 : 435,497,746.20 = 268,160,899.60 : x - Step 2: Convert to fraction form
290,331,830.80/435,497,746.20 = 268,160,899.60/x - Step 3: Cross multiply
290,331,830.80x = 435,497,746.20 × 268,160,899.60 - Step 4: Simplify right side
290,331,830.80x = 116,783,467,394,764,480 - Step 5: Solve for x
x = 116,783,467,394,764,480/290,331,830.80 - Step 6: Final answer
x = 402,241,349.40
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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.