Finding the Fourth Proportional to 27,865,680.98, 38,454,729.61 and 15,475,774.41
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Solution
The fourth proportional to 27,865,680.98, 38,454,729.61 and 15,475,774.41 is: 21,356,618.59
Step by Step Solution
- Step 1: Write the proportion equation
27,865,680.98 : 38,454,729.61 = 15,475,774.41 : x - Step 2: Convert to fraction form
27,865,680.98/38,454,729.61 = 15,475,774.41/x - Step 3: Cross multiply
27,865,680.98x = 38,454,729.61 × 15,475,774.41 - Step 4: Simplify right side
27,865,680.98x = 595,116,720,441,907.25 - Step 5: Solve for x
x = 595,116,720,441,907.25/27,865,680.98 - Step 6: Final answer
x = 21,356,618.59
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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.