Finding the Fourth Proportional to 542,638,094.96, 813,962,063.21 and 154,460,772.74
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Solution
The fourth proportional to 542,638,094.96, 813,962,063.21 and 154,460,772.74 is: 231,692,559.80
Step by Step Solution
- Step 1: Write the proportion equation
542,638,094.96 : 813,962,063.21 = 154,460,772.74 : x - Step 2: Convert to fraction form
542,638,094.96/813,962,063.21 = 154,460,772.74/x - Step 3: Cross multiply
542,638,094.96x = 813,962,063.21 × 154,460,772.74 - Step 4: Simplify right side
542,638,094.96x = 125,725,209,265,723,936 - Step 5: Solve for x
x = 125,725,209,265,723,936/542,638,094.96 - Step 6: Final answer
x = 231,692,559.80
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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.