Finding the Fourth Proportional to 15,485,195.84, 21,370,119.08 and 8,516,412.18
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Solution
The fourth proportional to 15,485,195.84, 21,370,119.08 and 8,516,412.18 is: 11,752,950.65
Step by Step Solution
- Step 1: Write the proportion equation
15,485,195.84 : 21,370,119.08 = 8,516,412.18 : x - Step 2: Convert to fraction form
15,485,195.84/21,370,119.08 = 8,516,412.18/x - Step 3: Cross multiply
15,485,195.84x = 21,370,119.08 × 8,516,412.18 - Step 4: Simplify right side
15,485,195.84x = 181,996,742,378,380.31 - Step 5: Solve for x
x = 181,996,742,378,380.31/15,485,195.84 - Step 6: Final answer
x = 11,752,950.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.