Finding the Fourth Proportional to 290,425,848.20, 435,638,772.30 and 224,668,881.80
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Solution
The fourth proportional to 290,425,848.20, 435,638,772.30 and 224,668,881.80 is: 337,003,322.70
Step by Step Solution
- Step 1: Write the proportion equation
290,425,848.20 : 435,638,772.30 = 224,668,881.80 : x - Step 2: Convert to fraction form
290,425,848.20/435,638,772.30 = 224,668,881.80/x - Step 3: Cross multiply
290,425,848.20x = 435,638,772.30 × 224,668,881.80 - Step 4: Simplify right side
290,425,848.20x = 97,874,475,841,365,824 - Step 5: Solve for x
x = 97,874,475,841,365,824/290,425,848.20 - Step 6: Final answer
x = 337,003,322.70
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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.