Finding the Fourth Proportional to 7,125,924.36, 10,688,786.64 and 2,808,012.11
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Solution
The fourth proportional to 7,125,924.36, 10,688,786.64 and 2,808,012.11 is: 4,211,978.79
Step by Step Solution
- Step 1: Write the proportion equation
7,125,924.36 : 10,688,786.64 = 2,808,012.11 : x - Step 2: Convert to fraction form
7,125,924.36/10,688,786.64 = 2,808,012.11/x - Step 3: Cross multiply
7,125,924.36x = 10,688,786.64 × 2,808,012.11 - Step 4: Simplify right side
7,125,924.36x = 30,014,242,272,882.28 - Step 5: Solve for x
x = 30,014,242,272,882.28/7,125,924.36 - Step 6: Final answer
x = 4,211,978.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.