Finding the Fourth Proportional to 21,712,845.99, 32,570,316.48 and 7,139,442.84
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Solution
The fourth proportional to 21,712,845.99, 32,570,316.48 and 7,139,442.84 is: 10,709,508.69
Step by Step Solution
- Step 1: Write the proportion equation
21,712,845.99 : 32,570,316.48 = 7,139,442.84 : x - Step 2: Convert to fraction form
21,712,845.99/32,570,316.48 = 7,139,442.84/x - Step 3: Cross multiply
21,712,845.99x = 32,570,316.48 × 7,139,442.84 - Step 4: Simplify right side
21,712,845.99x = 232,533,912,789,670 - Step 5: Solve for x
x = 232,533,912,789,670/21,712,845.99 - Step 6: Final answer
x = 10,709,508.69
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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.