Finding the Fourth Proportional to 256,131,502.56, 353,461,587.65 and 138,656,829.00
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Solution
The fourth proportional to 256,131,502.56, 353,461,587.65 and 138,656,829.00 is: 191,346,485.79
Step by Step Solution
- Step 1: Write the proportion equation
256,131,502.56 : 353,461,587.65 = 138,656,829.00 : x - Step 2: Convert to fraction form
256,131,502.56/353,461,587.65 = 138,656,829.00/x - Step 3: Cross multiply
256,131,502.56x = 353,461,587.65 × 138,656,829.00 - Step 4: Simplify right side
256,131,502.56x = 49,009,862,914,393,968 - Step 5: Solve for x
x = 49,009,862,914,393,968/256,131,502.56 - Step 6: Final answer
x = 191,346,485.79
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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.