Finding the Fourth Proportional to 90,366,886.08, 124,707,122.40 and 49,113,877.44
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Solution
The fourth proportional to 90,366,886.08, 124,707,122.40 and 49,113,877.44 is: 67,777,596.32
Step by Step Solution
- Step 1: Write the proportion equation
90,366,886.08 : 124,707,122.40 = 49,113,877.44 : x - Step 2: Convert to fraction form
90,366,886.08/124,707,122.40 = 49,113,877.44/x - Step 3: Cross multiply
90,366,886.08x = 124,707,122.40 × 49,113,877.44 - Step 4: Simplify right side
90,366,886.08x = 6,124,850,325,448,679 - Step 5: Solve for x
x = 6,124,850,325,448,679/90,366,886.08 - Step 6: Final answer
x = 67,777,596.32
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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.