Finding the Fourth Proportional to 268,452,239.93, 402,417,203.77 and 128,356,290.98
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Solution
The fourth proportional to 268,452,239.93, 402,417,203.77 and 128,356,290.98 is: 192,409,568.69
Step by Step Solution
- Step 1: Write the proportion equation
268,452,239.93 : 402,417,203.77 = 128,356,290.98 : x - Step 2: Convert to fraction form
268,452,239.93/402,417,203.77 = 128,356,290.98/x - Step 3: Cross multiply
268,452,239.93x = 402,417,203.77 × 128,356,290.98 - Step 4: Simplify right side
268,452,239.93x = 51,652,779,699,806,200 - Step 5: Solve for x
x = 51,652,779,699,806,200/268,452,239.93 - Step 6: Final answer
x = 192,409,568.69
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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.