Finding the Fourth Proportional to 13,210,434,107.40, 18,230,402,043.99 and 7,269,986,609.40
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Solution
The fourth proportional to 13,210,434,107.40, 18,230,402,043.99 and 7,269,986,609.40 is: 10,032,583,158.61
Step by Step Solution
- Step 1: Write the proportion equation
13,210,434,107.40 : 18,230,402,043.99 = 7,269,986,609.40 : x - Step 2: Convert to fraction form
13,210,434,107.40/18,230,402,043.99 = 7,269,986,609.40/x - Step 3: Cross multiply
13,210,434,107.40x = 18,230,402,043.99 × 7,269,986,609.40 - Step 4: Simplify right side
13,210,434,107.40x = 132,534,778,743,785,701,376 - Step 5: Solve for x
x = 132,534,778,743,785,701,376/13,210,434,107.40 - Step 6: Final answer
x = 10,032,583,158.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.