Finding the Fourth Proportional to 16,386,639.40, 24,579,959.10 and 10,340,021.80
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Solution
The fourth proportional to 16,386,639.40, 24,579,959.10 and 10,340,021.80 is: 15,510,032.70
Step by Step Solution
- Step 1: Write the proportion equation
16,386,639.40 : 24,579,959.10 = 10,340,021.80 : x - Step 2: Convert to fraction form
16,386,639.40/24,579,959.10 = 10,340,021.80/x - Step 3: Cross multiply
16,386,639.40x = 24,579,959.10 × 10,340,021.80 - Step 4: Simplify right side
16,386,639.40x = 254,157,312,937,108.41 - Step 5: Solve for x
x = 254,157,312,937,108.41/16,386,639.40 - Step 6: Final answer
x = 15,510,032.70
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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.