Finding the Fourth Proportional to 15,238,106.32, 21,028,843.20 and 8,363,228.08
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Solution
The fourth proportional to 15,238,106.32, 21,028,843.20 and 8,363,228.08 is: 11,541,395.52
Step by Step Solution
- Step 1: Write the proportion equation
15,238,106.32 : 21,028,843.20 = 8,363,228.08 : x - Step 2: Convert to fraction form
15,238,106.32/21,028,843.20 = 8,363,228.08/x - Step 3: Cross multiply
15,238,106.32x = 21,028,843.20 × 8,363,228.08 - Step 4: Simplify right side
15,238,106.32x = 175,869,011,940,157.06 - Step 5: Solve for x
x = 175,869,011,940,157.06/15,238,106.32 - Step 6: Final answer
x = 11,541,395.52
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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.