Finding the Fourth Proportional to 128,328,262,826.06, 177,111,418,717.50 and 76,888,854,093.26
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Solution
The fourth proportional to 128,328,262,826.06, 177,111,418,717.50 and 76,888,854,093.26 is: 106,117,652,745.59
Step by Step Solution
- Step 1: Write the proportion equation
128,328,262,826.06 : 177,111,418,717.50 = 76,888,854,093.26 : x - Step 2: Convert to fraction form
128,328,262,826.06/177,111,418,717.50 = 76,888,854,093.26/x - Step 3: Cross multiply
128,328,262,826.06x = 177,111,418,717.50 × 76,888,854,093.26 - Step 4: Simplify right side
128,328,262,826.06x = 13,617,894,032,020,135,215,104 - Step 5: Solve for x
x = 13,617,894,032,020,135,215,104/128,328,262,826.06 - Step 6: Final answer
x = 106,117,652,745.59
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1.5x scale
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.