Finding the Fourth Proportional to 458,106,945.42, 687,058,157.16 and 212,431,657.98
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Solution
The fourth proportional to 458,106,945.42, 687,058,157.16 and 212,431,657.98 is: 318,600,066.89
Step by Step Solution
- Step 1: Write the proportion equation
458,106,945.42 : 687,058,157.16 = 212,431,657.98 : x - Step 2: Convert to fraction form
458,106,945.42/687,058,157.16 = 212,431,657.98/x - Step 3: Cross multiply
458,106,945.42x = 687,058,157.16 × 212,431,657.98 - Step 4: Simplify right side
458,106,945.42x = 145,952,903,454,182,208 - Step 5: Solve for x
x = 145,952,903,454,182,208/458,106,945.42 - Step 6: Final answer
x = 318,600,066.89
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.