Finding the Fourth Proportional to 42,352,128.12, 63,497,220.66 and 13,581,887.16
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Solution
The fourth proportional to 42,352,128.12, 63,497,220.66 and 13,581,887.16 is: 20,362,898.50
Step by Step Solution
- Step 1: Write the proportion equation
42,352,128.12 : 63,497,220.66 = 13,581,887.16 : x - Step 2: Convert to fraction form
42,352,128.12/63,497,220.66 = 13,581,887.16/x - Step 3: Cross multiply
42,352,128.12x = 63,497,220.66 × 13,581,887.16 - Step 4: Simplify right side
42,352,128.12x = 862,412,085,977,740.62 - Step 5: Solve for x
x = 862,412,085,977,740.62/42,352,128.12 - Step 6: Final answer
x = 20,362,898.50
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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.