Finding the Fourth Proportional to 19,117,510.85, 28,672,281.08 and 6,992,685.65
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Solution
The fourth proportional to 19,117,510.85, 28,672,281.08 and 6,992,685.65 is: 10,487,570.79
Step by Step Solution
- Step 1: Write the proportion equation
19,117,510.85 : 28,672,281.08 = 6,992,685.65 : x - Step 2: Convert to fraction form
19,117,510.85/28,672,281.08 = 6,992,685.65/x - Step 3: Cross multiply
19,117,510.85x = 28,672,281.08 × 6,992,685.65 - Step 4: Simplify right side
19,117,510.85x = 200,496,248,425,919.09 - Step 5: Solve for x
x = 200,496,248,425,919.09/19,117,510.85 - Step 6: Final answer
x = 10,487,570.79
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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.