Finding the Fourth Proportional to 245,749,854.88, 339,128,324.40 and 135,739,205.92
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Solution
The fourth proportional to 245,749,854.88, 339,128,324.40 and 135,739,205.92 is: 187,316,527.54
Step by Step Solution
- Step 1: Write the proportion equation
245,749,854.88 : 339,128,324.40 = 135,739,205.92 : x - Step 2: Convert to fraction form
245,749,854.88/339,128,324.40 = 135,739,205.92/x - Step 3: Cross multiply
245,749,854.88x = 339,128,324.40 × 135,739,205.92 - Step 4: Simplify right side
245,749,854.88x = 46,033,009,459,036,152 - Step 5: Solve for x
x = 46,033,009,459,036,152/245,749,854.88 - Step 6: Final answer
x = 187,316,527.54
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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.