Finding the Fourth Proportional to 542,638,129.74, 813,962,115.18 and 154,460,807.52
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Solution
The fourth proportional to 542,638,129.74, 813,962,115.18 and 154,460,807.52 is: 231,692,611.91
Step by Step Solution
- Step 1: Write the proportion equation
542,638,129.74 : 813,962,115.18 = 154,460,807.52 : x - Step 2: Convert to fraction form
542,638,129.74/813,962,115.18 = 154,460,807.52/x - Step 3: Cross multiply
542,638,129.74x = 813,962,115.18 × 154,460,807.52 - Step 4: Simplify right side
542,638,129.74x = 125,725,245,601,390,048 - Step 5: Solve for x
x = 125,725,245,601,390,048/542,638,129.74 - Step 6: Final answer
x = 231,692,611.91
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.