Finding the Fourth Proportional to 129,035,679.60, 193,553,519.40 and 48,239,929.20
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Solution
The fourth proportional to 129,035,679.60, 193,553,519.40 and 48,239,929.20 is: 72,359,893.80
Step by Step Solution
- Step 1: Write the proportion equation
129,035,679.60 : 193,553,519.40 = 48,239,929.20 : x - Step 2: Convert to fraction form
129,035,679.60/193,553,519.40 = 48,239,929.20/x - Step 3: Cross multiply
129,035,679.60x = 193,553,519.40 × 48,239,929.20 - Step 4: Simplify right side
129,035,679.60x = 9,337,008,072,266,828 - Step 5: Solve for x
x = 9,337,008,072,266,828/129,035,679.60 - Step 6: Final answer
x = 72,359,893.80
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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.