Finding the Fourth Proportional to 134,690,781.80, 202,036,172.70 and 48,432,002.60
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Solution
The fourth proportional to 134,690,781.80, 202,036,172.70 and 48,432,002.60 is: 72,648,003.90
Step by Step Solution
- Step 1: Write the proportion equation
134,690,781.80 : 202,036,172.70 = 48,432,002.60 : x - Step 2: Convert to fraction form
134,690,781.80/202,036,172.70 = 48,432,002.60/x - Step 3: Cross multiply
134,690,781.80x = 202,036,172.70 × 48,432,002.60 - Step 4: Simplify right side
134,690,781.80x = 9,785,016,441,500,448 - Step 5: Solve for x
x = 9,785,016,441,500,448/134,690,781.80 - Step 6: Final answer
x = 72,648,003.90
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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.