Finding the Fourth Proportional to 27,712,391.58, 38,234,700.99 and 19,339,538.63
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Solution
The fourth proportional to 27,712,391.58, 38,234,700.99 and 19,339,538.63 is: 26,682,701.65
Step by Step Solution
- Step 1: Write the proportion equation
27,712,391.58 : 38,234,700.99 = 19,339,538.63 : x - Step 2: Convert to fraction form
27,712,391.58/38,234,700.99 = 19,339,538.63/x - Step 3: Cross multiply
27,712,391.58x = 38,234,700.99 × 19,339,538.63 - Step 4: Simplify right side
27,712,391.58x = 739,441,476,611,430.75 - Step 5: Solve for x
x = 739,441,476,611,430.75/27,712,391.58 - Step 6: Final answer
x = 26,682,701.65
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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.