Finding the Fourth Proportional to 159,426,399.80, 239,139,599.70 and 120,879,212.60
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Solution
The fourth proportional to 159,426,399.80, 239,139,599.70 and 120,879,212.60 is: 181,318,818.90
Step by Step Solution
- Step 1: Write the proportion equation
159,426,399.80 : 239,139,599.70 = 120,879,212.60 : x - Step 2: Convert to fraction form
159,426,399.80/239,139,599.70 = 120,879,212.60/x - Step 3: Cross multiply
159,426,399.80x = 239,139,599.70 × 120,879,212.60 - Step 4: Simplify right side
159,426,399.80x = 28,907,006,513,215,192 - Step 5: Solve for x
x = 28,907,006,513,215,192/159,426,399.80 - Step 6: Final answer
x = 181,318,818.90
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1.5x scale
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.