Finding the Fourth Proportional to 499,539,819.96, 749,305,526.54 and 390,456,744.12
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Solution
The fourth proportional to 499,539,819.96, 749,305,526.54 and 390,456,744.12 is: 585,681,830.66
Step by Step Solution
- Step 1: Write the proportion equation
499,539,819.96 : 749,305,526.54 = 390,456,744.12 : x - Step 2: Convert to fraction form
499,539,819.96/749,305,526.54 = 390,456,744.12/x - Step 3: Cross multiply
499,539,819.96x = 749,305,526.54 × 390,456,744.12 - Step 4: Simplify right side
499,539,819.96x = 292,571,396,243,930,624 - Step 5: Solve for x
x = 292,571,396,243,930,624/499,539,819.96 - Step 6: Final answer
x = 585,681,830.66
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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.