Finding the Fourth Proportional to 20,727,501.78, 31,084,516.23 and 6,890,746.26
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Solution
The fourth proportional to 20,727,501.78, 31,084,516.23 and 6,890,746.26 is: 10,333,879.90
Step by Step Solution
- Step 1: Write the proportion equation
20,727,501.78 : 31,084,516.23 = 6,890,746.26 : x - Step 2: Convert to fraction form
20,727,501.78/31,084,516.23 = 6,890,746.26/x - Step 3: Cross multiply
20,727,501.78x = 31,084,516.23 × 6,890,746.26 - Step 4: Simplify right side
20,727,501.78x = 214,195,513,955,781.78 - Step 5: Solve for x
x = 214,195,513,955,781.78/20,727,501.78 - Step 6: Final answer
x = 10,333,879.90
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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.