Finding the Fourth Proportional to 373,248,539.80, 559,872,809.70 and 212,005,403.80
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Solution
The fourth proportional to 373,248,539.80, 559,872,809.70 and 212,005,403.80 is: 318,008,105.70
Step by Step Solution
- Step 1: Write the proportion equation
373,248,539.80 : 559,872,809.70 = 212,005,403.80 : x - Step 2: Convert to fraction form
373,248,539.80/559,872,809.70 = 212,005,403.80/x - Step 3: Cross multiply
373,248,539.80x = 559,872,809.70 × 212,005,403.80 - Step 4: Simplify right side
373,248,539.80x = 118,696,061,097,089,072 - Step 5: Solve for x
x = 118,696,061,097,089,072/373,248,539.80 - Step 6: Final answer
x = 318,008,105.70
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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.