Finding the Fourth Proportional to 20,084,881.48, 30,130,159.68 and 6,434,834.92
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Solution
The fourth proportional to 20,084,881.48, 30,130,159.68 and 6,434,834.92 is: 9,653,161.45
Step by Step Solution
- Step 1: Write the proportion equation
20,084,881.48 : 30,130,159.68 = 6,434,834.92 : x - Step 2: Convert to fraction form
20,084,881.48/30,130,159.68 = 6,434,834.92/x - Step 3: Cross multiply
20,084,881.48x = 30,130,159.68 × 6,434,834.92 - Step 4: Simplify right side
20,084,881.48x = 193,882,603,654,040.03 - Step 5: Solve for x
x = 193,882,603,654,040.03/20,084,881.48 - Step 6: Final answer
x = 9,653,161.45
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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.