Finding the Fourth Proportional to 129,425,326.50, 178,488,660.99 and 101,171,432.19
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Solution
The fourth proportional to 129,425,326.50, 178,488,660.99 and 101,171,432.19 is: 139,524,109.77
Step by Step Solution
- Step 1: Write the proportion equation
129,425,326.50 : 178,488,660.99 = 101,171,432.19 : x - Step 2: Convert to fraction form
129,425,326.50/178,488,660.99 = 101,171,432.19/x - Step 3: Cross multiply
129,425,326.50x = 178,488,660.99 × 101,171,432.19 - Step 4: Simplify right side
129,425,326.50x = 18,057,953,462,033,684 - Step 5: Solve for x
x = 18,057,953,462,033,684/129,425,326.50 - Step 6: Final answer
x = 139,524,109.77
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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.