Finding the Fourth Proportional to 15,130,325.08, 20,879,824.79 and 8,254,807.75
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Solution
The fourth proportional to 15,130,325.08, 20,879,824.79 and 8,254,807.75 is: 11,391,621.70
Step by Step Solution
- Step 1: Write the proportion equation
15,130,325.08 : 20,879,824.79 = 8,254,807.75 : x - Step 2: Convert to fraction form
15,130,325.08/20,879,824.79 = 8,254,807.75/x - Step 3: Cross multiply
15,130,325.08x = 20,879,824.79 × 8,254,807.75 - Step 4: Simplify right side
15,130,325.08x = 172,358,939,541,870.91 - Step 5: Solve for x
x = 172,358,939,541,870.91/15,130,325.08 - Step 6: Final answer
x = 11,391,621.70
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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.