Finding the Fourth Proportional to 103,679,014.21, 155,394,518.40 and 48,272,156.53
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Solution
The fourth proportional to 103,679,014.21, 155,394,518.40 and 48,272,156.53 is: 72,350,499.98
Step by Step Solution
- Step 1: Write the proportion equation
103,679,014.21 : 155,394,518.40 = 48,272,156.53 : x - Step 2: Convert to fraction form
103,679,014.21/155,394,518.40 = 48,272,156.53/x - Step 3: Cross multiply
103,679,014.21x = 155,394,518.40 × 48,272,156.53 - Step 4: Simplify right side
103,679,014.21x = 7,501,228,515,720,280 - Step 5: Solve for x
x = 7,501,228,515,720,280/103,679,014.21 - Step 6: Final answer
x = 72,350,499.98
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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.