Finding the Fourth Proportional to 124,704,438.40, 187,056,657.60 and 56,679,990.40
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Solution
The fourth proportional to 124,704,438.40, 187,056,657.60 and 56,679,990.40 is: 85,019,985.60
Step by Step Solution
- Step 1: Write the proportion equation
124,704,438.40 : 187,056,657.60 = 56,679,990.40 : x - Step 2: Convert to fraction form
124,704,438.40/187,056,657.60 = 56,679,990.40/x - Step 3: Cross multiply
124,704,438.40x = 187,056,657.60 × 56,679,990.40 - Step 4: Simplify right side
124,704,438.40x = 10,602,369,557,024,086 - Step 5: Solve for x
x = 10,602,369,557,024,086/124,704,438.40 - Step 6: Final answer
x = 85,019,985.60
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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.