Finding the Fourth Proportional to 256,353,403.68, 353,765,741.64 and 138,877,893.54
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Solution
The fourth proportional to 256,353,403.68, 353,765,741.64 and 138,877,893.54 is: 191,650,433.74
Step by Step Solution
- Step 1: Write the proportion equation
256,353,403.68 : 353,765,741.64 = 138,877,893.54 : x - Step 2: Convert to fraction form
256,353,403.68/353,765,741.64 = 138,877,893.54/x - Step 3: Cross multiply
256,353,403.68x = 353,765,741.64 × 138,877,893.54 - Step 4: Simplify right side
256,353,403.68x = 49,130,241,005,579,064 - Step 5: Solve for x
x = 49,130,241,005,579,064/256,353,403.68 - Step 6: Final answer
x = 191,650,433.74
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.