Finding the Fourth Proportional to 10,636,697.18, 15,960,028.49 and 5,242,407.02
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Solution
The fourth proportional to 10,636,697.18, 15,960,028.49 and 5,242,407.02 is: 7,866,066.32
Step by Step Solution
- Step 1: Write the proportion equation
10,636,697.18 : 15,960,028.49 = 5,242,407.02 : x - Step 2: Convert to fraction form
10,636,697.18/15,960,028.49 = 5,242,407.02/x - Step 3: Cross multiply
10,636,697.18x = 15,960,028.49 × 5,242,407.02 - Step 4: Simplify right side
10,636,697.18x = 83,668,965,395,376 - Step 5: Solve for x
x = 83,668,965,395,376/10,636,697.18 - Step 6: Final answer
x = 7,866,066.32
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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.