Finding the Fourth Proportional to 99,886,124.80, 149,577,244.80 and 79,730,732.80
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Solution
The fourth proportional to 99,886,124.80, 149,577,244.80 and 79,730,732.80 is: 119,394,994.67
Step by Step Solution
- Step 1: Write the proportion equation
99,886,124.80 : 149,577,244.80 = 79,730,732.80 : x - Step 2: Convert to fraction form
99,886,124.80/149,577,244.80 = 79,730,732.80/x - Step 3: Cross multiply
99,886,124.80x = 149,577,244.80 × 79,730,732.80 - Step 4: Simplify right side
99,886,124.80x = 11,925,903,338,108,990 - Step 5: Solve for x
x = 11,925,903,338,108,990/99,886,124.80 - Step 6: Final answer
x = 119,394,994.67
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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.