Finding the Fourth Proportional to 47,837,400.56, 66,006,920.76 and 28,261,476.08
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Solution
The fourth proportional to 47,837,400.56, 66,006,920.76 and 28,261,476.08 is: 38,995,701.91
Step by Step Solution
- Step 1: Write the proportion equation
47,837,400.56 : 66,006,920.76 = 28,261,476.08 : x - Step 2: Convert to fraction form
47,837,400.56/66,006,920.76 = 28,261,476.08/x - Step 3: Cross multiply
47,837,400.56x = 66,006,920.76 × 28,261,476.08 - Step 4: Simplify right side
47,837,400.56x = 1,865,453,012,173,195.25 - Step 5: Solve for x
x = 1,865,453,012,173,195.25/47,837,400.56 - Step 6: Final answer
x = 38,995,701.91
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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.