Finding the Fourth Proportional to 99,691,900.30, 149,285,908.05 and 79,536,508.30
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Solution
The fourth proportional to 99,691,900.30, 149,285,908.05 and 79,536,508.30 is: 119,103,756.96
Step by Step Solution
- Step 1: Write the proportion equation
99,691,900.30 : 149,285,908.05 = 79,536,508.30 : x - Step 2: Convert to fraction form
99,691,900.30/149,285,908.05 = 79,536,508.30/x - Step 3: Cross multiply
99,691,900.30x = 149,285,908.05 × 79,536,508.30 - Step 4: Simplify right side
99,691,900.30x = 11,873,679,864,691,862 - Step 5: Solve for x
x = 11,873,679,864,691,862/99,691,900.30 - Step 6: Final answer
x = 119,103,756.96
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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.