Finding the Fourth Proportional to 19,974,647.88, 29,883,137.76 and 15,390,970.47
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Solution
The fourth proportional to 19,974,647.88, 29,883,137.76 and 15,390,970.47 is: 23,025,712.07
Step by Step Solution
- Step 1: Write the proportion equation
19,974,647.88 : 29,883,137.76 = 15,390,970.47 : x - Step 2: Convert to fraction form
19,974,647.88/29,883,137.76 = 15,390,970.47/x - Step 3: Cross multiply
19,974,647.88x = 29,883,137.76 × 15,390,970.47 - Step 4: Simplify right side
19,974,647.88x = 459,930,490,815,102 - Step 5: Solve for x
x = 459,930,490,815,102/19,974,647.88 - Step 6: Final answer
x = 23,025,712.07
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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.