Finding the Fourth Proportional to 159,495,566.80, 239,243,350.20 and 78,873,998.80
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Solution
The fourth proportional to 159,495,566.80, 239,243,350.20 and 78,873,998.80 is: 118,310,998.20
Step by Step Solution
- Step 1: Write the proportion equation
159,495,566.80 : 239,243,350.20 = 78,873,998.80 : x - Step 2: Convert to fraction form
159,495,566.80/239,243,350.20 = 78,873,998.80/x - Step 3: Cross multiply
159,495,566.80x = 239,243,350.20 × 78,873,998.80 - Step 4: Simplify right side
159,495,566.80x = 18,870,079,716,582,780 - Step 5: Solve for x
x = 18,870,079,716,582,780/159,495,566.80 - Step 6: Final answer
x = 118,310,998.20
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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.