Finding the Fourth Proportional to 624,260,836.90, 861,479,655.29 and 373,365,224.42
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Solution
The fourth proportional to 624,260,836.90, 861,479,655.29 and 373,365,224.42 is: 515,243,830.49
Step by Step Solution
- Step 1: Write the proportion equation
624,260,836.90 : 861,479,655.29 = 373,365,224.42 : x - Step 2: Convert to fraction form
624,260,836.90/861,479,655.29 = 373,365,224.42/x - Step 3: Cross multiply
624,260,836.90x = 861,479,655.29 × 373,365,224.42 - Step 4: Simplify right side
624,260,836.90x = 321,646,544,830,615,104 - Step 5: Solve for x
x = 321,646,544,830,615,104/624,260,836.90 - Step 6: Final answer
x = 515,243,830.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.