Finding the Fourth Proportional to 19,316,163.20, 28,974,244.80 and 19,316,163.20
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Solution
The fourth proportional to 19,316,163.20, 28,974,244.80 and 19,316,163.20 is: 28,974,244.80
Step by Step Solution
- Step 1: Write the proportion equation
19,316,163.20 : 28,974,244.80 = 19,316,163.20 : x - Step 2: Convert to fraction form
19,316,163.20/28,974,244.80 = 19,316,163.20/x - Step 3: Cross multiply
19,316,163.20x = 28,974,244.80 × 19,316,163.20 - Step 4: Simplify right side
19,316,163.20x = 559,671,241,153,551.38 - Step 5: Solve for x
x = 559,671,241,153,551.38/19,316,163.20 - Step 6: Final answer
x = 28,974,244.80
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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.