Finding the Fourth Proportional to 18,516,921.04, 27,776,710.16 and 6,386,206.12
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Solution
The fourth proportional to 18,516,921.04, 27,776,710.16 and 6,386,206.12 is: 9,579,767.39
Step by Step Solution
- Step 1: Write the proportion equation
18,516,921.04 : 27,776,710.16 = 6,386,206.12 : x - Step 2: Convert to fraction form
18,516,921.04/27,776,710.16 = 6,386,206.12/x - Step 3: Cross multiply
18,516,921.04x = 27,776,710.16 × 6,386,206.12 - Step 4: Simplify right side
18,516,921.04x = 177,387,796,417,258.19 - Step 5: Solve for x
x = 177,387,796,417,258.19/18,516,921.04 - Step 6: Final answer
x = 9,579,767.39
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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.